I would brush up on Math, medication math, also more complex equations as in algrebra. I would also do a human biology or a pre a and p, mircobiology is really advanced I wouldn't take that until you are through a&p. I would take a computer class just to brush up on some computer skills, could help you later on when researching. Also a human growth or psychology class to further you knowledge in how people work. Hope that it helps you. I am currently in a 50 week program where we have several older(not implying anything) students. I have 4 kids at home and 3 are under age of 3. So, it is really hard at times. So, keep up and don't fall behind. Good Luck!!!