Yeah, I know a person who got addicted to using chapstick to get that hand to mouth fixation. Just constantly applying it. Your mileage may vary.

For me it was lack of structure, so what got me going was actually scheduling a class. Then the obligation would kick in because I made the commitment. Even better if it’s a regularly occurring class because then people will start to recognize you and take note if you missed. Which re-enforces the cycle!