Cutting your hair short after years of long hair is low stakes and somehow huge. Small risks keep you from going stiff.

The stakes really are small, since it grows back, and the feeling is large because identity quietly attaches itself to habit. You have looked one way for years and the mirror has become a fact rather than a choice. Practising change on things that are reversible is how you stay able to make the bigger changes later, because flexibility is a habit and so is stiffness.

Do one reversible thing this month. The haircut, a different route, a class in something unrelated to anything you already do.