Habits, health, money and time. How to actually keep up with your whole life.
You keep re-buying the planner and abandoning it by February. It isn't willpower — your life is split across eight apps that can't see each other. Here's the research, and the honest argument for keeping it all in one place.
To build a habit that survives a missed day, drop the all-or-nothing streak, use a rolling completion window, and make the next day the only day that matters. One slip does not reset progress.
It takes about 66 days on average for a new behaviour to become automatic, not 21. The real range runs from 18 to 254 days, and a single missed day does not reset the clock.