HELP! AP TIPS FOR HISTORY/PSYCHOLOGY

Hii guys, so i need yall to pls drop ur biggest lifesavers that helped you all when taking the ap psych and us history. My Gpa rn is a 4.4 and I need to bring it up to increase my ranking, my school is super tiny and every kid there is intelligent. I need to pass these two to increase my GPA and ranking pls help. (I also wanna be a AP scholar hehe) What books should I buy or what videos should I watch? Please let me know !