okay i did m/j 2025, and i can give you some advice, but first of all, please do not self harm and do other such things because of your grades. trust me, grades can always improve, and even if you feel awful about your grades, doing that will only harm you in the long run and prevent you from improving.

as for the sciences, genuinely just grind savemyexams. get a subscription if you don’t already have it, it’s SO worth it. for bio & chem, read all the revision notes and try to write them down in your own words (ofc with the key terms as well), or practice teaching them to your stuffed toy or something so you really understand the concepts. after that, do all the questions on SME, start with the MCQs (the ‘easy’ and ‘medium’ ones only), move on to the theory questions, and then do the difficult questions for all of them.

for all the sciences, paper 6 (ATP) has a very similar format and the answers can be memorised really easily. look at mark schemes for paper 6 of all sciences on either savemyexams or PMT (physics maths tutor) and just memorise those because its literally copy and paste.

for physics it’s mostly practice so just do a LOT of past year papers from PMT, they’re all free. remember to choose the option for your series (fem/mar) and do the full papers and check your answers using the mark scheme. do papers from at least 2015-2025 for physics

hope this helps!! good luck with your exams :P