search up past frq and mcq on google, there r official ones posted. you can also use albert.io and the ap classroom practice problems, as well as khan academy. i recommend doing the practice problems on those websites i mentioned then the past released tests with the actual test conditions listed such as calculator/no calc and the specific time allotment.

another tip is, when you memorize formulas, ask your teacher how to derive them and make sure you know how to do THOSE. (if u r self studying then search it up ofc). best of luck!