So basically when I took Biology G/T Freshman year of High School, I never listened in class or did the homework since my life was absorbed by video games (ending with a C average in class, almost a D). Now, as a senior, Im taking Biology AP however I really want to turn over a new leaf (and get an A). The problem is: nothing makes sense in Biology AP since everything seems to branc off of Bio GT. Also, due to the workload I have, our class has already covered several chapters in the book and I have unfortunately failed the tests on them since I didnt have time to study or figure out how to study. But now I do have time. For a guy who knows next to nothing about Biology and is already around a quarter behind in Biology AP, what should I do to learn the stuff I need to and catch up?? (Also, in class, the teacher doesnt really teach, she does a bunch of labs, and tests us, and occasionally gives us worksheets) Also, my textbook is the Black 'Biology' book by Campbell Reece 7th Edition. What chapters/parts should I read to catch up (as obviously I shouldn't/cant read the entire thing)? And what else should I do (maybe buy an AP bio prep book?)?