“Why Do I Keep Doing This?”

You know the feeling. You promised yourself you would not do it again. You would not go quiet in the argument. You would not volunteer for extra work when you were already drowning. You would not pick that kind of partner, spend the evening scrolling instead of sleeping, or say yes when every fibre of you meant no. And yet — here you are. Again. Staring at the wreckage of the same pattern, feeling the same sinking mix of frustration and confusion, asking the same question: “What is wrong with me?”

The answer, almost always, is: nothing. Nothing is wrong with you. What is wrong is the rulebook you are operating from — a set of hidden assumptions about how the world works, what is safe, and what you need to do to survive. Those assumptions were written a long time ago. Most of them made perfect sense when they were formed. But they have not been updated since, and they are now running your behaviour in situations where they no longer apply.

This post is about finding those rules. Not to judge them — many of them were genuinely protective once — but to bring them into the light, examine whether they still fit, and begin the work of updating them. The method is called an Assumption Autopsy, and it is one of the most efficient tools I use in clinical practice.

What Is an Assumption?

An assumption, in this context, is a belief that operates as if it were a fact — without ever being tested or examined. It sits beneath your conscious decision-making and shapes your behaviour automatically. You do not choose it in the moment. It chooses for you.

Assumptions typically take the form of conditional rules:

Notice that these are not irrational. They are not silly. In many cases, they were learned in environments where they were true. If you grew up in a household where expressing disagreement genuinely did result in punishment or withdrawal of affection, then “conflict is dangerous” was not a distortion — it was accurate survival information. Your nervous system encoded it for a very good reason.

The core insight: Assumptions are often protective rules that were once accurate. The problem is not that you formed them. The problem is that they have not been updated for your current life. You are running 2026 situations through a rulebook written in childhood — and wondering why the outputs feel wrong.

The Problem With Standard Reflection

When a pattern repeats, most people do one of two things. They either beat themselves up — “I’m so stupid, why do I keep doing this” — or they make a surface-level resolution: “Next time I will try harder.” “Next time I will just say no.” “Next time I will speak up.”

Neither works, because neither touches the engine.

Standard reflection stays at the event level. It examines what happened and what you did, but it rarely drops a level deeper to ask: what rule made that behaviour feel necessary in the moment? Without that question, you are changing the output without changing the programme. You are rearranging furniture in a house whose foundations are tilted. Everything slides back to the same position.

From Practice

A client came to session frustrated. He had promised himself he would raise a concern with his manager about workload. He had rehearsed the words. He had written them down. But when the meeting arrived, he went quiet, smiled, said everything was fine, and walked out feeling sick.

His first instinct was self-blame: “I’m a coward. I can’t even do the basic thing.”

When we slowed it down, what emerged was not cowardice. It was a rule: “If I make someone uncomfortable, they will think less of me — and eventually push me out.” That rule had been running for decades. It came from a family system where rocking the boat had real consequences. In that context, staying quiet was smart. But in a professional setting with a reasonable manager, the rule was producing unnecessary suffering and stalled career growth.

The problem was never willpower. The problem was the assumption.

This is why “just try harder” fails. If your nervous system believes that speaking up equals danger, no amount of motivational self-talk will override that signal in the moment. The body will win. It always does. You have to change what the body believes — and that requires identifying the belief first.

The Assumption Autopsy Method

An assumption autopsy is a structured way to move from “why did I do that?” to “what rule was running?” — and then to “does that rule still hold?” It has four steps.

Step 1: Name the Event

Write down what happened, in facts-only language. No interpretation, no emotional colouring — just the observable sequence. “My partner raised a concern about how much I work” is a fact. “My partner attacked me for no reason” is an interpretation. Stay with the facts.

Step 2: Name the Behaviour

Write down what you actually did. Again, be specific and honest. “I went quiet and agreed with everything they said” is specific. “I handled it badly” is vague. Specificity matters because it gives you something to work with. Vague descriptions produce vague insights.

Step 3: Extract the Assumption

This is the critical step. Ask yourself: what rule made that behaviour feel necessary in the moment? Not what you think intellectually — what your nervous system was acting on. What was it trying to prevent? What outcome did it believe would follow if you had acted differently?

The assumption often sounds like an “if…then” statement:

Step 4: Update and Test

Write a more accurate assumption — one that fits your current life, not the environment where the original rule was formed. Then choose one small behavioural test to gather evidence for the updated version.

This is not about “thinking positive.” It is about running an experiment. You are not trying to believe something new through force of will. You are collecting data. Small, manageable, real-world data that your nervous system can actually absorb.

Three Worked Examples

Example 1 — Conflict Avoidance in Relationships

Event: Partner expressed frustration about household responsibilities.

Behaviour: Went quiet. Agreed immediately. Apologised for things that were not your fault. Spent the next two hours feeling resentful but saying nothing.

Assumption: “If I engage in conflict, the relationship will be damaged — maybe permanently. Conflict equals abandonment.”

Updated assumption: “Conflict can be uncomfortable and still be safe. Repair is possible. Healthy relationships tolerate disagreement — they require it.”

Small test: Next time a minor disagreement arises, state your perspective in one sentence before defaulting to agreement. Notice what actually happens versus what you predicted.

Example 2 — Procrastination and Perfectionism

Event: An important work task with a deadline.

Behaviour: Spent hours researching the “right” approach. Rewrote the opening paragraph eleven times. Eventually ran out of time and submitted something rushed, which confirmed the fear that you are not good enough.

Assumption: “My first attempt must be impressive. If it is not excellent, people will see that I do not belong here.”

Updated assumption: “Iteration creates quality. A rough first pass is not a reflection of my ability — it is the normal starting point for everyone.”

Small test: Submit one piece of work at 80% polish. Observe whether the consequence you feared actually occurs.

Example 3 — Social Anxiety and the Spotlight Effect

Event: Invited to a social gathering.

Behaviour: Attended but monitored yourself constantly — how you were standing, what your face was doing, whether you were saying the right things. Left early, exhausted, and spent the drive home replaying every interaction.

Assumption: “Being noticed equals being judged. If people are looking at me, they are evaluating me — and finding me lacking.”

Updated assumption: “Attention is not always evaluation. Most people are inside their own heads, managing their own discomfort. Being noticed is neutral, not threatening.”

Small test: At the next social event, deliberately redirect attention outward — ask someone a question about themselves — and notice whether the feared judgement actually arrives.

Why Assumptions Resist Change

If updating an assumption were as simple as writing a new one down, therapy would take about ten minutes. The reason assumptions persist is that they are not stored as ideas. They are stored as nervous-system responses. Your body learned the rule before your conscious mind had language for it, and your body does not update its files through intellectual argument.

This is why you can know, rationally, that conflict is safe in your current relationship — and still freeze the moment your partner raises their voice. Your prefrontal cortex has the updated information. Your amygdala does not. And in a moment of activation, the amygdala is faster.

Your behaviour makes sense inside your assumptions. Change the assumptions, and behaviour changes with less force.

This is also why behavioural experiments are essential. Thinking about a new assumption is not enough. You have to experience the new outcome in your body. When you speak up and the relationship does not end, when you submit imperfect work and nobody recoils, when you attend a social event and nobody evaluates you the way you predicted — those moments update the nervous system in a way that rational insight alone cannot.

The Assumption Update Test

You do not update assumptions by thinking. You update them by testing. This is one of the most important distinctions in clinical psychology, and it is the one most self-help material gets wrong.

A behavioural experiment is not exposure for the sake of exposure. It is a prediction test. You identify what you expect will happen (based on the old assumption), you do the thing, and then you compare what actually happened with what you predicted. The gap between prediction and reality is where learning occurs.

The rules for a good test are simple:

Practical Tool

The Assumption Autopsy Worksheet

Use this structure after any repeating pattern. It takes about 10–15 minutes.

  1. Trigger / Event: What happened? (Facts only — no interpretation.)
  2. What I did: What was my behaviour? (Be specific.)
  3. What I was trying to prevent: What outcome was I avoiding?
  4. Hidden rule / Assumption: What “if…then” rule was running?
  5. Cost of this assumption: What is this rule costing me? (Relationships, career, health, self-respect?)
  6. Alternative assumption: What would be more accurate in my current life?
  7. One small test this week: What is one thing I can do to gather evidence for the updated assumption?

Common Traps

Where This Goes Wrong

Why This Is Compassionate

There is a reason this method is called an autopsy, not a prosecution. The goal is not to find fault. It is not to humiliate yourself for having assumptions in the first place. Everyone has them. Every single person walking the earth is running on a set of hidden rules that were formed in conditions they did not choose.

The assumptions that cause you the most trouble today were almost certainly survival rules at some point. The child who learned to go quiet during conflict was not weak — they were adaptive. The teenager who learned to be perfect to earn approval was not neurotic — they were responding to the incentive structure of their environment. The young adult who learned to suppress needs in relationships was not broken — they were keeping themselves safe in a system that punished authenticity.

The stance is not: “I was stupid to believe that.” The stance is: “That rule kept me safe once. It is no longer accurate. I can honour its purpose and still let it go.”

This is not weakness. It is not “letting yourself off the hook.” It is the most efficient route to change. When you approach your own assumptions with curiosity rather than contempt, you lower the defensive response that keeps them locked in place. Shame reinforces assumptions. Compassion loosens them.

The Loop — And How to Break It

Here is the pattern, made visible:

  1. Event occurs — a situation that activates the assumption.
  2. Assumption fires — the hidden rule produces a prediction (“If I do X, then Y will happen”).
  3. Protective behaviour activates — avoidance, appeasement, withdrawal, over-preparation, self-silencing.
  4. Short-term relief arrives — the feared outcome is avoided (for now).
  5. Assumption is reinforced — because you never tested it, it remains unchallenged. The loop repeats.

The assumption autopsy intervenes at Step 2. By naming the rule, you create a gap between the assumption and the automatic behaviour. In that gap, you can choose a different response — even a small one — and observe what actually happens. Each time the feared outcome does not arrive, the assumption weakens. Each time you survive the discomfort of acting differently, your nervous system recalibrates what is safe.

This is not fast. It is not dramatic. But it is how real change works: not through willpower or positive affirmations, but through the slow accumulation of corrective experiences.

From Practice

A woman in her thirties came to therapy after noticing that every romantic relationship followed the same arc. She would be warm, open, generous — and then, around the three-month mark, she would begin pulling away. She would find faults, create distance, and eventually end the relationship before it could end her.

Her assumption, once we surfaced it, was devastatingly simple: “If I let someone get close enough to really know me, they will leave. So I should leave first.”

She did not need to be told this was irrational. She already knew. What she needed was to stay in the discomfort of closeness long enough to collect evidence that contradicted the rule. Her first test was small: tell her partner one thing about her childhood that she had never shared before. She expected him to pull away. He did not. He moved closer. That single data point did not rewrite the assumption — but it cracked it. And cracks are where new assumptions grow.

When This Connects to Self-Doubt

Related series: If the assumptions you are uncovering are less about behaviour patterns and more about a persistent sense of being a fraud or not belonging, that is a different but related territory. See The Impostor Feelings Series for specific tools on that.

Assumptions about competence — “I am only as good as my last achievement,” “If people knew what I was really like, they would not be impressed” — deserve special attention because they tend to be self-reinforcing in a particular way. Success gets attributed to luck or effort; failure gets attributed to identity. The assumption autopsy method applies here, but the testing phase often needs to be more gradual and more supported, because the stakes feel existential rather than practical.

Key Takeaways

Patterns do not repeat because you are broken. They repeat because a rule is running unchallenged. Name the rule. Test it. Update it. That is the work.
Series continues: Post 3 explores what happens when “learning from mistakes” becomes its own trap — the rumination loop that disguises itself as useful reflection. Read Post 3: How to Stop Rumination.
← Previous: Recovering From a Mistake Series Index Next: How to Stop Rumination →

If you are noticing the same patterns repeating — in relationships, at work, or in how you talk to yourself — therapy can help you identify the hidden rules and update them safely. That is exactly what we do.

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Frequently Asked Questions

How do I find my hidden assumptions?

Look at what you consistently do under pressure — not what you think you should do, but what you actually do. Then ask: what rule makes that behaviour feel necessary? Hidden assumptions often take the form “If X happens, then Y will follow.” The “Y” is usually some version of rejection, exposure, abandonment, or loss of control. If you find yourself unable to act differently despite genuinely wanting to, there is almost certainly an assumption running that you have not yet named.

Can beliefs change without “positive thinking”?

Yes — and in most cases, they must change without positive thinking, because the body does not update its threat files through slogans. Beliefs change when you test them with real behaviour and observe a different outcome than the one you predicted. A small experiment — speaking up once, submitting imperfect work, sitting with conflict instead of fleeing — provides new evidence that the brain can absorb. Positive thinking tells you what to believe. Behavioural testing lets you discover what is actually true.

Why do I keep repeating the same mistakes?

Because the same assumption keeps producing the same protective behaviour. It is not a character flaw. It is a feedback loop: the assumption predicts danger, the behaviour avoids the danger, the avoidance prevents you from collecting evidence that the danger is not real, and the assumption stays intact. Breaking the loop requires naming the assumption and running a small, deliberate test that allows new evidence in. You do not need to be braver. You need to be more specific about what you are actually afraid of.

What is an assumption autopsy?

It is a short, structured method for understanding why a pattern keeps repeating. You name the event (what happened), name the behaviour (what you did), extract the hidden assumption (what rule made the behaviour feel necessary), and then update the assumption and choose one small test to gather evidence for the new version. It takes about 10–15 minutes and works best when you are honest rather than diplomatic with yourself. The goal is not self-criticism — it is clarity.

This content is for education and reflection. It is not a substitute for professional advice or therapy. If you are in crisis, contact Lifeline on 13 11 14 or emergency services on 000.