Plan Your Approach to a Health Behaviour Change

You have tried this before and it worked until it did not. This designs the approach to start smaller, use the environment rather than willpower, handle the first miss without catastrophising, track something that predicts success rather than measuring failure, and has a built-in review before you have made it too big to adjust.

<context>
You want to change {HEALTH_BEHAVIOUR} (e.g. reduce alcohol intake, exercise three times a week, improve sleep consistency, reduce screen time). Your previous attempts have failed because {PREVIOUS_FAILURE_PATTERN} (e.g. started too ambitiously, no external accountability, change felt like deprivation).
</context>

<task>
Design a behaviour change approach:
1. The minimum viable version of the change (the smallest increment that is still meaningful)
2. The environmental change that makes the behaviour easier rather than relying on willpower
3. How to handle the first miss without abandoning the whole attempt
4. A metric to track that is leading (predicts the outcome) rather than lagging (confirms it after the fact)
5. The review point: when and how to assess whether the approach is working
</task>

<output_format>
- Five numbered items, each two to three sentences
- Length: under 300 words
- Tone: practical; no wellness language
</output_format>