Essays and worked examples on changing unwanted habits

The Psychology of Quitting

Understand the argument that keeps bringing you back

"This Is the Last Time": The Promise That Renews Itself

The last time was not the last time. This one probably is not either.

The thought has a ceremonial quality. This is not just indulgence. It is a farewell. A last meal before the sentence begins. You are saying goodbye to the habit, which means you can enjoy it fully, without guilt, because it is ending. Tomorrow, you will be different.

Except tomorrow the thought is available again. And the next day. “This is the last time” is not a decision. It is a renewable contract.

The function of the promise

The “last time” serves a specific psychological purpose: it resolves the tension between wanting the habit and wanting to quit. Instead of choosing one, you get both. You indulge now, and you commit to change later. The discomfort of the contradiction disappears, temporarily, into the promise.

In Marlatt and Gordon’s relapse-prevention model, this kind of thought falls under “seemingly irrelevant decisions”: choices that appear harmless but move the person closer to the behavior [5]. “This is the last time” is a seemingly irrelevant decision dressed up as a commitment. It looks like resolve. It functions as permission.

A fictional example

The following is an illustrative example, not a real person’s story.

Keiko has been trying to stop impulse-buying clothes online. She has deleted the apps twice and reinstalled them twice. Tonight, she finds a dress on sale and the thought arrives: “This is the last one. I’ll buy this and then I’m done. No more.”

  • What she thinks: “This sale ends tonight. I’d regret not getting it. And then that’s it. Clean slate.”
  • What she feels: A mix of excitement and premature pride, as though the quitting has already happened.
  • What she does: Buys the dress, feels briefly satisfied, and two weeks later buys a pair of shoes with the same “last time” framing.

The promise gave Keiko the experience of commitment without the cost of action. She felt the glow of quitting without actually quitting.

The intention-behavior gap

A meta-analysis of experimental studies found that even when people successfully change their intentions, the effect on actual behavior is considerably smaller. Medium-to-large changes in intention produced only small-to-medium changes in behavior [1]. Intending to quit and quitting are connected but not the same thing.

The gap exists partly because intentions are formed in what researchers call a “cold” cognitive state: calm, rational, forward-looking. But the behavior happens in a “hot” state: craving, stress, emotional arousal. Research on hot-cold empathy gaps shows that people in a cold state consistently underestimate how much a hot state will affect their decisions [3].

Keiko, sitting in the calm of tomorrow morning, means it when she says she will stop. Keiko, seeing the sale price at 11pm, is a different decision-maker. The “last time” was promised by one person and broken by another, even though they are the same person in different states.

The dual process

A model of behavior by Strack and Deutsch proposes two systems: a reflective system that makes deliberate plans and an impulsive system that responds to cues and associations. Both influence behavior, and they often disagree [2].

“This is the last time” is a product of the reflective system. The cue-triggered wanting that shows up two weeks later is a product of the impulsive system. The reflective system made a promise. The impulsive system was not party to the agreement.

This is why the “last time” feels so sincere. It is sincere, in the moment it is made. It is also made by a system that does not control the behavior alone.

How many last times?

A useful exercise: try to count them. How many times have you said “this is the last time” about this habit? Not approximately. Try to remember specific occasions.

If the number is more than two or three, the promise is part of the pattern, not a break from it. It is not a sign of commitment. It is a feature of the cycle, as predictable as the craving itself.

Questions to examine the thought

When “this is the last time” arrives:

  1. How many times have you said this before? Be honest.
  2. What is different about this time? If nothing has changed in your circumstances, support or strategy, why would the outcome be different?
  3. Can you describe the thought without the word “last”? “I want to do this and I am choosing to do it.” Does it feel different without the farewell?
  4. Are you enjoying the feeling of quitting without having to quit? The promise can provide the emotional reward of change without the actual change.
  5. What would you do right now if this were not the last time? If the habit were going to continue indefinitely, would this moment feel less special?

An alternative framing

Instead of “this is the last time,” try: “This is what I am choosing right now.”

The sentence does something uncomfortable: it removes the exit. You are not saying goodbye. You are not performing a finale. You are doing the thing, and you know you are doing it, and you are not pretending it will not happen again.

That honesty is harder than the “last time” promise, but it is also more useful. It puts you in contact with the actual decision rather than the comfortable story about it. And it makes the next decision, the real one, visible.

For the thought that follows a lapse, see “I already failed, so why bother” and the abstinence-violation effect. For the promise of moderation rather than cessation, see “I’ll just have one” and the promise of controlled use.

When to get more support. If the “last time” has been cycling for months or years and you cannot seem to break the pattern on your own, a therapist can help. Cognitive-behavioral therapy and motivational interviewing are both effective for breaking bargaining cycles. If the habit involves substances, your GP or a specialist service can assess your situation confidentially. In the US, call or text 988 if you are in crisis. In the UK and Ireland, Samaritans are on 116 123.

Frequently asked questions

Why do I keep saying 'this is the last time'?

Because it solves two problems at once: it gives you permission to indulge now, and it lets you believe you are still committed to change. The promise functions as a psychological bridge between wanting the habit and wanting to quit.

Is it ever really the last time?

Sometimes. But when it is, it usually is not announced in advance. People who successfully quit often report that the actual last time did not feel special. It felt ordinary. The dramatic 'last time' is usually a ritual that serves the habit.

What is the intention-behavior gap?

It is the well-documented finding that intentions to change do not reliably translate into actual behavior change. A meta-analysis found that even medium-to-large changes in intention produced only small-to-medium changes in behavior. Wanting to quit and quitting are different things.

How do I break the 'last time' cycle?

Stop framing episodes as endings. Instead of 'this is the last time,' try 'this is what I am choosing right now.' Removing the false finality forces you to own the decision without the comfortable promise that it will not happen again.

Sources and further reading

  1. Webb and Sheeran — Does changing behavioral intentions engender behavior change? A meta-analysis of the experimental evidence

    Psychological Bulletin, 2006;132(2):249–268. Meta-analysis showing that intention changes produce smaller behavior changes. DOI: 10.1037/0033-2909.132.2.249.

  2. Strack and Deutsch — Reflective and impulsive determinants of social behavior

    Personality and Social Psychology Review, 2004;8(3):220–247. Dual-process model of how reflective intentions and impulsive associations both drive behavior. DOI: 10.1207/s15327957pspr0803_1.

  3. Loewenstein — Hot-cold empathy gaps and medical decision making

    Health Psychology, 2005;24(4 Suppl):S49–S56. Research on how people in a 'cold' state underestimate the influence of 'hot' emotional states. DOI: 10.1037/0278-6133.24.4.S49.

  4. Ariely and Loewenstein — The heat of the moment: the effect of sexual arousal on sexual decision making

    Journal of Behavioral Decision Making, 2006;19(2):87–98. Study demonstrating how arousal states change decisions and preferences. DOI: 10.1002/bdm.501.

  5. Marlatt and Gordon — Relapse Prevention: Maintenance Strategies in the Treatment of Addictive Behaviors

    Guilford Press, 1985. Relapse-prevention model including the concept of seemingly irrelevant decisions and the abstinence-violation effect.

  6. Baumeister, Vohs and Tice — The strength model of self-control

    Current Directions in Psychological Science, 2007;16(6):351–355. Concise overview of the self-control as limited resource model. DOI: 10.1111/j.1467-8721.2007.00534.x.

Sources checked October 16, 2026. This is an editorial summary, not a systematic review or individual advice.

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