I got at 4s and 5s in my IGCSE science (I do triple science) January Mocks and I really want to get at least 7s or ideally 8s. Right now I'm making flashcards with the specification and I know once I've finished those I'll move onto past papers. I've always struggled with STEM subjects and they are my lowest grades - I got 7s and 8s in my other subjects and I take 10 GCSEs. I got a 5 in my Maths mocks which I also struggle with. I really need these grades to go up!!! How many hours should I be doing after school and what do you think is the most effective way to move my grades up to 7s or 8s in just two months?