I never actually studied (didn't need to really) until before I went to take my GED. I never actually completed a math credit (I hate math) and I needed to learn 4 years of it in about 2 months. So I went to a tutor program (was air conditioned and super awesome and is also around when I joined EoFF) and they gave me the high school math book. It was MASSIVE. They also gave me access to a program that could make up practice tests for me. They were usually helping others and I didn't really need the help (I learn better by myself) so I just sat there 6 hours a day, 4 days a week studying math. And I passed my test !