Get yourself a bristol question bank subscription! Lol kidding however that will come as a very big aid when preparing for your atpl exams!
In terms of preparation I would suggest getting used to basic maths equations etc if you aren't already too familiar with them, with regards to the actual learning you'll be taught intensely by your school so don't worry on that front!
It will all seem very daunting when you start as it will feel that you have been thrown in the deep end straight away but it all starts to come together with time!
Hope that helps and good luck!
