This is going to be quite long and I'm also not great at writing so I apologise in advance..
I'm currently in year 12 and taking Chemistry, Biology and Art A-levels. I swapped from Psychology to Chemistry quite late on and so had quite a bit of work to catch up on. As a result of trying to catch up, I wasn't consolidating my Biology lessons like I should have been, wasn't putting extra time into Art and also wasn't understanding (and consolidating) Chemistry lessons for a while either. I'm not a high graded student anyway (although I'd love to be) and this is most likely due to not studying enough outside of lessons. I still don't understand the Chemistry content I missed properly and don't really understand Chemistry in general. My Biology is also rubbish and I'm still not consolidating lessons as I got out of the routine and I'm behind in Art (so is the whole class) so all my studies in Sixth-form are now Art. I got my mocks back recently and got a U in Chemistry and a D in Biology. I'm really wanting (and needing) to get higher grades but I don't know how to. How do I catch up with all the missed consolidation while also consolidating new content? What are actually effective revision techniques? How can I motivate myself to study and properly study without procrastinating? I know a lot of tips are to focus on the end goal but my problem is, I don't know really what I want to do. Basically I feel like I've screwed my whole Sixth-form stuff up and I don't know how to fix it. Please help?