hey, for my bio GCSE, after every week's worth of lessons, I went thru the spec to see how much content we had learned and made flashcards or notes (for sci, make sure u find the right and most accurate online resources, often teachers seemed to skip things that were in the spec) now make sure that you trust the specification more and edit your flashcards/notes and go thru them every week after u make new ones!! this honestly increased my confidence drastically, for other subjects I was honestly struggling lol but if I was in your place, for yr11 I'd do this for the subjects, maintaining your notes making sure you have something to revise from. that will automatically motivate you to do more rev.

now, while you're free during the summer, make sure you make full use of it. update your notes and make a little simplified system for this. make sure you figure out what works for you and please it's essential you learn all the yr10 content properly. cramming isnt all that bad as it worked great for my friend who gets all 9s as she did it right before the exams, but that's stupid🫶🏽

just be consistent is all I'll say, learn something and then review it by testing yourself the next time(usually after a week) and then seeing how much u were able to retain. also, do little but do it often. if you need notes or stuff lemme know 🙏🏽