Spend seven unobtrusive days writing brief, concrete observations: timestamps, durations, perceived effort, and mood on a simple scale. Avoid changing behavior; pretend you are a friendly scientist shadowing yourself. Baselines built this way resist optimism bias and make improvements unmistakable.
Choose a single variable you can alter without side effects: wake-up time shift, first drink, notification settings, meeting blocks, or walking interval. One deliberate change isolates cause from coincidence, shortens experiments, and prevents the discouraging swirl of multiple moving targets competing for credit.
Decide in advance what winning looks like, and by how much. Pick outcomes tied to values, not vanity: deep-work minutes, evening calm, steps during sunlight, craving intensity, or bedtime consistency. Precommit to a timeframe and review ritual to avoid moving the goalposts.
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