@electricthot start slowly, OP.
I don't remember kung sa Atomic Habits ba 'to sinabi pero according to that book, practice the habit of showing up.
Kung dati nasa 2-3 hours ka nagbubuhat, pwede kang magbuhat muna for 30 minutes-1 hour. Kung dati 3-4 times a week, try mong Twice a week muna...