Tips for Studying AP Human Geography?

I’ve begun to “full-on” review for the AP Human Geography exam, but I’m not sure how to go about doing it in an efficient/productive manner. At the moment, I’ve got two prep books (Princeton Review & Barrons) and have taken PR’s practice test and scored a low 5 w/ no studying. Is there a good way to go about reviewing all the content including vocabulary, models, maps, and examples to thoroughly retain all the information? I’m extremely obsessive when it comes to studying for exams in general, and this is the first AP I’ll be taking, so any advice would be greatly appreciated.