I know the feeling, I dropped out back in the day, and 12 years later I'm heading back to college (Started beginning of the year). Lemme tell ya, Math isn't any easier by a long shot and still confuses the crap outta of me. Granted, I have a math genius friend that I can ask questions, and he explains it sooooo much better than the teachers, so I do have that perk. Plus, I'm going for Network Administration and I've always loved this field, but high time I actually did it. =P
Keep your mind focused, and use time best as you can, and you'll do okay. I'm holding about 3.2 GPA at the moment, which I don't think is bad considering how long it's been.
G'Luck,
Ali