Did you really need 2 threads for this?
First and foremost(if I'm not too late), think of the compulsory subjects you need to know. Geography is a f*cking huge subject, "looking on a map" won't get you anywhere.
Second, try to learn the basics for each subject. Your best friend here is pen and paper, just write them down. Two, three phrases each subject and you'll memorize them in no time.
Alas, if everything else fails, cheat.