There is a very similar thread just a few lines down "Reality of a skydiving career" under "General Skydiving Discussions" (Dont knw how to make clicky) that might have the answers you're looking for, but rather finish school before you start thinking about a career in skydiving.
What happens if you find out later that its not what you expected? Go back to school at 20...25...30...?
Get involved in skydiving over the weekends. Do your AFF/SL coarse, start jumping, learn to pack, etc. and when you're done with school, atleast you'll have some idea of what your getting yourself into! Ready...Set...Go..!
SkydiveSwakop