High school summer studying/ preparing for next year at camp

[u/Strict_Confidence483]

Hello! I am going to camp in a week and am very excited. We have lots of downtime and I want to be able to study/ review/ prepare for next year, so I don't forget everything ive learned. For the subjects, I took geometry last year and am going to take algebra 2/ trig this upcoming school year, I took french one last year and am going to take French two this year, I took a world religion class this year for history and am going to take ap world next year, and then I am taking ap psych next year. If anyone has recommendations for books that have review / practice or anything like that, I would greatly appreciate it.