9 weeks is a good chunk of time, the worst thing you can do is think that you are too far away from getting A*AA and give up. Just make sure you knuckle down, revise the way that helps you retain information, do one subject per day, don’t try to cram two different subjects in one revision session, if you have any mates on your course try to meet up with them and do a revision session together. As long as you put the time, effort, hard work and dedication in, you can do it.