Every January, gyms fill and empty within six weeks. The problem is not willpower — it is dosage. A resolution asks for a transformation; a habit asks for a repetition.
When you do something small daily — two minutes of reading, one glass of water before coffee — you are not just performing the action. You are casting a vote for the kind of person you are becoming. Enough votes, and the identity changes. Once identity changes, behaviour stops requiring force.