How to occupy mind with productive things?

I am trying to stay strong bros. But I keep gravitating towards useless wastes of time. How do I convince my mind to forget about that shit?

by remembering better shit

Just build habits that are productive in general

You need to tell yourself while you are doing something unproductive, I am going to get up and do this when this video ends and do it quickly before you keep scrolling. You must have a productive goal in mind. Just because you have started doing something unproductive doesn't make it a blackhole that you can't stop halfway through, this is half the battle. Goals like in 2 minutes I will go to bed(which I will)