You should be allowed to take any classes you'd like, as long as
there is no conflict with your conditions of release. For example,
if you were convicted of a sex offense I wouldn't recommend trying
to take early childhood education classes.
The classes in college shouldn't be a problem, but be careful
about what sort of field you are preparing yourself for. I'd
definitely recommend talking to some people in authority to try and
find out what your career prospects are on the other side of
college.
If you prepare yourself for self employment you won't have to
worry about getting turned down for a position due to background
checks.