If you can find key word lists for AQA, I would ensure you memorise these. This, and exam question technique, is very important.
Although it is difficult to do yr13 and also the yr 12 intervention work, it is essential in keeping on top of the content you will need to know by June.
Good luck, I know this stage of the course is really hard but keep working and it will come back. The A grades last year show you get it, so it is down to memorising it now.