The Psychology of Lasting Change

The Psychology of Lasting Change | Accredited Practising Dietitian Damian Kukulies

Most people believe they fail because they lack discipline.

They assume that if they were more motivated, more focused, more driven, the change would finally stick. They often believe that real change should look like 100 percent compliance. Perfect execution. No slip ups. No missed days. No regressions.

And when reality inevitably interrupts that fantasy, the critical self-talk arrives.

“I knew I couldn’t do this.”
“I always fail.”
“What’s wrong with me?”

This is the loop that keeps people stuck. Not because they are failures, but because the model of change they are trying to use is fundamentally flawed.

If you believe that change must be perfect, the first moment of imperfection feels like proof that you were never capable. Over time, you accumulate a mental archive of failed attempts. Each new effort feels heavier. More fragile. Harder to believe in.

But this has nothing to do with your character.

It has everything to do with the fact that the model itself was never built to work with real humans living real lives.

Change is not a discipline problem.
It is a safety problem.
But it is also an intention problem.

If the intention behind your change comes from a place of lack, you will burn out.

When you try to change from a place of:
“I am not enough.”
“I need to fix myself.”
“I will finally be okay when I reach this goal.”

You are building your new life on a foundation of self rejection.

That is not sustainable.

Lasting change has to come from a psychologically healthy place. Not from shame. Not from fear. Not from comparison. But from care.

From self respect.
From self compassion.
From the belief that you are already worthy of feeling well.

The truth that most people don’t realise is that change is inherently imperfect. By definition, you are trying to unwind patterns that have been hardwired into your nervous system for years, sometimes decades. These are default programs. Automatic responses. Safety strategies.

You do not undo those by simply deciding to be different.

That is not weakness. That is biology.

Real change is not created through perfection. It is created through persistence.

And persistence is only possible when you are gentle with yourself.

When your inner voice says:
“Of course this is hard.”
“Of course I slipped.”
“I can begin again.”

The most important factor in long term change is not how perfectly you follow the plan. It is whether you keep going after you fall off the plan.

This is where love becomes the engine of transformation.

When your behaviour comes from:
“I deserve to feel well.”
“I care about myself.”
“This is an act of self respect.”

You change the meaning of the process.

You are no longer trying to escape who you are.
You are caring for who you are.

And that changes everything.

Over time, this approach creates identity level transformation.

This is the deepest form of change.

You stop trying to act like a different person.
You stop forcing behaviour.

You become the person.

When you exercise from a place of punishment, it never sticks.
When you exercise from a place of love, it becomes part of you.

You are no longer “trying to be someone who exercises.”
You are an exerciser.

Not because you forced it.
But because you practiced it long enough, gently enough, consistently enough that your nervous system learned:

“This is safe.”
“This is who we are.”

This is why lasting change does not live in motivation.
It lives in identity.

When your self perception shifts, your behaviour follows naturally.

That is why you do not need a harsher plan.
You do not need more pressure.
You do not need more shame.

You need safety.
You need compassion.
You need to practice coming back to yourself every time you stray.

Change that is built on fear will always collapse.
Change that is built on love becomes part of who you are.

You were never failing.
You were just trying to grow in the wrong conditions.

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