Are you in college? If so, why not talk to some of your professors that you like, in each department? They would have a lot more experience than anybody here (most likely) (except for the music part). Tell them what interests you in their field, and what your concerns are (is it too hard, etc). Then ask them what employment opportunities are like these days.
And remind yourself, how great is it that you're still young enough to make that choice! I'd give anything to go back there again.