How to Grind Homework and study?

Whenever I try to study and grind homework I can't bring myself to do it, I just don't have enough motivation to. And whenever I do push myself I can only stay concentrated for short amounts of time. So what I end up doing is just staying up duper late and then giving up, then finishing what i can in the morning. I don't have any adhd or something like that, I just can't find the motivation to grind anything, I would just rather edit or do other things. Help!
How to Grind Homework and study?
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