I'm in Yr 11 also and the best way to revise is , sadly, to know the book inside and out. By this I mean you remember the name of each chapter and the occurrences. For memorising quotes I think making mind maps of each theme and character and writing the quotes along with a technique and summary would be the most helpful however if you are short on time for example MOCKS ARE THIS WEEK then make flashcards with the theme and quotes, you'll find common quotes which would be the best to memorise. REMEMBER TO ALWAYS WRITE THE EFFECT ON THE READER!!