I am taking AP US Gov & Politics, AP Macroeconomics, AP Biology, AP Statistics, and AP US History. However, the teachers in the first three classes don't teach anything, so I will effectively be self-studying them. I absolutely need to get 5s on all of my AP tests, so I'm starting to study now. Can anyone give me tips to teach myself the material? I ordered prep books (Barrons for Stats, PR for Bio and Gov), but what else do I need to do? I saw that the AP US Gov test changed too so I'm a little worried that my prep book won't be enough to study for it.