What helps you to stick to a screen time limit.

By having hobbies other than my phone. For example going for a hike, treating myself at a restaurant, going to the beach, visiting friends, studying, going to gym, dancing and overall just having fun… certain people may not have the opportunity to do all those things and might need their phone for work… than I would recommend that on your off days you go for a walk around the neighborhood

i have a limit thing on my phone telling me if i have gone over my screen time limit
but knowing i have tasks to do helps me get off it

You could try keeping your phone in a different room than you after a certain time or if all else fails put a screen time setting on your phone!