Hi! I managed to revise the majority of my maths content in a week (ish) and came out with all A*’s, so hopefully this can be of help to you. My best advice is PAST PAPERS PAST PAPERS PAST PAPERS. I found that if you’re on a time crunch then it might be helpful to just have the mark scheme to keep checking back on, but if that could give you a false sense of confidence then maybe it’s better to do without. Videos defo help as well - I recommend the GCSE Maths Tutor on yt. All the best for your exams!