Mikey's right. If you're hoping to get these classes done in two semesters, you may want to make sure that you've got your sequencing right. Some schools
require basic bio before taking A & P, but it's almost a given that you'll have to take basic bio before you take microbio, and you probably won't be able to take these concurrently next semester. Or, maybe you will...every school is a little different.
All of the courses you've listed are definitely challenging, but all of them (with the exception of micro, which requires some bio knowledge) are intro/survey courses that don't require any foreknowledge of the subject matter. They'll teach you everything from the ground up, so brushing up on your fundamentals may not be easy, since it's the fundamentals you'll be learning in these courses.
Like Mikey said, brushing up on basic math is a good idea for chem. I've mentioned in another thread that my chem book had an appendix that covered the math required in intro to chem (exponents, fractions, basic algebra and a tiny bit of geometry) and also gave tips on using your calculator. That would be helpful.
For A & P, you'll certainly be learning the major organs and the bones, so if you have some extra time and really want to put some prep in, you could start memorizing those.
But my best advice would be...get the partying out of your system now! :chuckle All of these classes require lots of time and attention; they're not terribly difficult if you make an effort to study consistently and never get behind. You'll do great!