lately I've been feeling so burned out, I'm not doing bad at college or anything but that's because i revised a lot during summer but no i just don't feel like studying or doing anything really, I'm not wasting time watching netflix, i'm wasting time sitting on my ass doing nothing, I just want to sleep sometimes but I wake up early too and I cant seem to wake up any other time but at that time which is 4 am.
I want to study and I do study but only 2 subjects (bio and chem) and i do past papers for them since we pretty much covered all the topics and tbh I'm not scoring bad but If i get a really good score on 1 paper and get not so good score on the other paper, I feel worthless and it makes me lose all my confidence and makes me hate myself if don't get a single question right. sometimes i can study for 12/15 hours but other times i can't at all and I hate that and I can't focus on my other subjects as well and I have mocks in 3 weeks
what can i do to focus and concentrate more?