I'm wanting to get A*AA-A*A*A* as well.
When is the 'best' time to start revising? I've just started my A2 courses this week, and have early entry for UCAS so am working on that right now and making sure it's ready to be sent off by the 28th September (internal college deadline).
I am prepared to work non-stop, I just don't know when is the best time to start? January, February, March, April? Or even as early as November, December?