Phogirl, how about nursing? You don't have to be a hands on nurse, you can always be a nurse that works for a pharmaceurtical company. A nursing degree is only a two year program at a community college. I'm sure you're mostly done with general ed, so the nursing core classes would be the only thing left and that could be done in a year or year and a half.
Have you ever read
Algebra for Dummies? I'm no math whiz either and that helped me out alot. There's also Chemistry for Dummies