As far as the all-mighty $$ goes, look into grants, scholarships and what not. If you can swing A's and B's at the CC, not only will it open grants, but it also opens up the possibility of various scholarships. As far as 'what you want to do,' I'm 35, working on my masters degree, and I still don't know what I want to do. So far I've narrowed it down to wanting to be making music somehow. Beyond that I really don't care.
I got my degree in 2001 in music performance after 6 majors and 7 years of college. I ended up being told I basically had to find a major and stay with it or just take a 'gen ed' degree and leave. So I chose what I loved doing at school for the previous 5 years, playing my cello. Two years later I left with a degree and a truck load of electives.
I went out in to the 'real' world and got a 'real' job while trying to start my masters. The 40+ hour work week and incompatibility with my new professor left me only working and not in school after a very short semester. The next 9 years were in the IT work force. While I did well and made fairly decent money, I hated what I was doing, who I was doing it for, and ultimately was miserable.
I picked up my cello after almost a decade and practiced myself to the bone and 6 months later I quit my 9 year career in IT and enrolled in school for my masters degrees (I'm doing 2.) From there I'll be going on to a doctoral degree, in something musically interesting to be determined.
The point is; take what you think you'll enjoy, you'll not always be right, but you'll also learn what you don't enjoy along the way. After a while it will become clear, hopefully you're not as scattered as I am. I started as Mass Comm, ended up in Pre-Law, Child-Psych, Hospitality, and a couple other I can't even remember; however my ultimate passion was under my nose the entire time as I had a Music Minor from day 1, and that never changed.
You're young, money will come and go, it's better when it's headed you're way but you'll get through the rough times. This is one of the few times I tell people to rely on the government, hit up those grants, loans, and scholarships. Keep your grades high so you get more bank at the financial aid office. Other than that, have fun learning; don't get too bogged down in the 'future' it'll happen one way or another and trust me, you won't be prepared, but at least you'll have a clue.