Gcse 2025 combined science higher and all tips for gcses

Ok so I'm doing my gcses this year and for science atm my revision is watching youtube videos that cover the whole content and using A3 sheets of papers to make sort of poster notes. After I finish the videos I will then do a paper for that video (e.g. all of paper 1 biology) and I'm relying on that as my revision. Is that effective??? I mean it's February now I've nearly finished paper 1 biology, just started paper 1 chemistry and haven;t started paper 1 physics yet. Do I have enough time??? I spend around 45 mins each day and have been doing biology for a little over a week now. PLEASSEEEE I NEED TIPS FOR SCIENCES I'M AIMING FOR 7S AND IM DOING HIGHER COMBINED.Oh and I'm planning on doing flashcards for practicals. For the past papers I'll see what I can do without my notes and in another pen write when I've used my notes and then I'll also look at the examiner reports

sounds good. If you can, try to make flashcards for the whole subject on anki or something using your exam board specification. Fairly time consuming but very effective. I would save the whole past papers for April/May and focus on individual topics at the moment.