depends how quickly you can learn things, how much work you've been putting in the rest of the year, how much you understand of the course without work and how efficiently you work from now on.
Past papers are probably the quickest way to find out what you know and what you don't. They're pretty good at pointing out holes in your knowledge/understanding, then you can really focus on working on things you don't understand instead of trying to pin down the entire course in five weeks.
Also the most important thing is to not panic, and pace yourself. The one thing you don't want to do is to work really hard for say, the next two weeks and burn out before you actually get to your exams.
Good luck, and I hoped this helped.