Need help with English Lit A SL

My mock exams are starting in a few days and really need help with English, I have always got 3-4 and really want to improve!!!
How do I do it?😭😭
I want to understand everything from basics, how do I go about?? Any tips
Also if someone who faced the same situation as me and improved, how did you do it?
I would really appreciate the help!!!!🥺