The way that you define yourself matters.
Consider “I don’t scroll on my phone in bed” vs “I’m trying not to scroll on my phone in bed.”
Even if, “I don’t scroll on my phone in bed,” isn’t quite true yet, act like it is. Start to think of yourself as someone who doesn’t scroll in bed. When you go to pick up your phone in the morning, remind yourself that you don’t do this. It isn’t an option.
Treat that definition as a rule, not a suggestion. The way you define yourself plays a huge role in how you act.