How should I study for AB Calc?

I have a practice exam which will be 20% of my class grade on Saturday, so I want to study a lot and do well. I will also need some good study techniques for the actual AP test. How should I study? I prefer free methods, but if theres an amazing book or something I’ll take it.

If you get this book and work through the problems for the relevant chapters by yourself, you should do ok:'s+series+calculus&qid=1650491988&sprefix=schaum's+series+calculus%2Caps%2C73&sr=8-3

Free - Review any test prep your teacher has provided, Kahn academy, and the College Board AP portal for your class.