The average time for a behavior to become habit was 66 days. But the range was wild, from 18 to 254 days, showing that there is huge variation in people's time to reach habit automaticity, and that it can end up taking a very long time in some cases.
The desired effect of exercise, as an example, has three possible causes: motivation, willpower, or habit.
Motivation Sets Us Up For Failure Through The Law Of Decreasing Enthusiasm
Willpower is Reliable
Willpower Can Be Strengthened
Willpower Strategies Can Be Scheduled
•There are five main causes of willpower depletion: effort, perceived difficulty, negative affect, subjective fatigue, and blood glucose levels.
These actions are too small to fail, and too small to skip for special occasions.