How did you become so disciplined?

I read somewhere that when you write you follow a rigorous routine of exercise and work. As someone who has a hard time sticking to schedules (I'm hardly ever even on time), I would like to know how and when you became so disciplined, and if you have any tips to make me stay on course?
(ephemerally productive girl、女性、26歳、student)

That is MY style of writing. I am comfortable when I am following a routine. You don’t have to follow my style, of course. You’d better find YOUR style. You are totally free to do anything you want, in any style you choose.

hm