How to revise for an A* in Maths A2 (AQA)

Hi,

I am aiming for an A/A* this year in Maths.

What should be my action plan apart from doing all the past papers? I bought a CGP C3 and C4 revision guide, is it worth finishing all the questions from that revision guide, or should I focus on finishing every question from the school AQA textbook - my only concern is the school AQA textbook is 10 years old, so is it better to do the CGP instead? Also, I got a B in C3 and an A in C4 mock this year.

Thanks