hi there,
i am in y12 and im also applying to study med (:
i study bio (currently A*), chem (currently C) and maths (currently A*)
i think we can both help each other out!
one thing i want to make clear - biology is common sense. now that's not necessarily the case for everyone. exam boards vary as well. i am doing edexcel b for biology so safe to say that most of it is common sense. whatever exam board you are sitting though, biology is biology at the end of the day. if you view biology as hard and difficult, you may end up overlooking topics that you can understand with the snap of a finger. trust me when i say this, all you need are flashcards and active recall. it's literally a memorising game at the end of the day. chemistry and maths are the trickier subjects if im being completely honest. but anyways, my point is YES. you can move up a grade in whatever space of time. it may take a few days.it may take a week. it's all about how you approach the subject. wake up every morning and say to yourself "i will understand biology" and use videos, flashcards, whatever resources you use to remember info - because with biology, you dont necessarily have to understand it, you just need to remember. key word: REMEMBER
hope that was useful. also if u dont mind sharing any chem tips, that would be fab X