Before I give you my newly discovered knowledge, keep in mind that I have never taken an AP exam (except old ones) so there’s a chance this is gonna be terrible BUT:
If you have a lot of AP exams coming up and you have Barron’s books for all of them, DON’T USE THEM ALL AT THE SAME TIME. Trust me it feels way more productive when you go through 1 book at a time rather than demolishing your brain with 5 books at once. Start with the book of your closest exam date (for me it’s AP Psychology since it’s literally on the first day) and move on to the one with the next closest day when you are done. This doesn’t mean you have to do every single practice test or problem before you move on. Save a test or two for the weekend before exam week. Anyway, follow this at your own risk!