Not more willpower. A habit small enough to survive your worst day.
One page, three lines, ten squats. Small enough that you can't argue your way out of it.
Tie it to something you already do. After morning chai, I write three lines.
A tick for every day you do it. After a week of ticks, you won't want to break the row.
Missing one day is normal. If you missed yesterday, do the tiny version today, no matter what.
How to Be Consistent, free to download and print, in English and हिंदी.