Just stay on top of your work load for now, work hard on homework, make good notes for end of topic tests, or when you finish a particular topic (which you can use later). The intense revision I think should start around Easter time, where you start making lots of notes/doing past papers etc, however starting early is always a good idea. Christmas period should be spent reivising throughly for mocks, the better your notes are now, the easier it will be later on for you to revise. Spend oct/nov on homework and notes. Spend dec/jan preparing notes and practicing for mocks. Spend The time after mocks relaxing, you don't want to burn out too soon! March finishing off content. March/April making notes. May/June doing exams therefore studying/revising all day everyday basically. Good luck!!