I just recently finished my own degree and I've thought considerably on what I would have done differently. Your passion is music, and mine was writing; I was writing my own fiction as early as kindergarten, and I remained passionate about it even up through high school (after which most dreams die). So I pursued an English degree with a focus in Creative Writing. It was the biggest mistake of my life. By the time I graduated, my passion for writing was dead and every dollar I made went into a degree that I didn't want.
1. If you go to college, do it to get a job. Regardless of what your passion is, you need to eat.
2. Your passion is something you're going to do anyway, so why spend your college money on it?
3. Before you crack open your wallet - even before you put pen to paper on a college application, know exactly - explicitly - what your goals are. You can waste years of your life and tens of thousands of dollars if you have no idea what you want to accomplish.
4. Do not put yourself in debt. Ever. Debt is slavery. I worked 50-60 hours a week for five years, never making more than $9.90 an hour, on top of 5-7 classes a semester - and every penny I made went into tuition, rent, food, or bills. It was brutal, but I graduated without putting myself under a single penny of debt. I've heard horror stories of students graduating with $60,000 of debt from student loans - loans they will never pay off, because they can't find work now. Even though I graduated right into the hiring freeze in 2008, I owe no money, and every dollar I make - as crappy as my job is - is mine. Do not fall into the debt trap.
5. Please listen to this one: College is not the next step after high school. This is largely why I went to college; because it was expected, because that's just what people do after high school. For most, college is just an extension of adolescence; it delays the inevitable. If a college education won't help you get where you need to go, then don't get one.
6. If you're absolutely certain that music is what you want to do with your life, and you have the will to make a living of it regardless of the obstacles, then do it. If you have the talent, a degree isn't going to make a difference.
7. Computer technicians, auto mechanics, plumbers, electricians; these trades are worth their weight in gold. You can make some good money with any of them. They sure as hell beat fastfood and retail - take my word for it.