Are another 4 years of college worth it?

I am 20 years old and I have been in school for a little over a year. I've decided that I don't want to take up art (which is what I am doing) and transferring to a different school for a whole different career. Some of my credits will transfer, but I'm pretty much going in as a freshman, which means four more years or college. I also can't start until Fall of 2011 and will be home from April 2010 until then. I can't decide if it's truly worth it or not. What would you do in this situation?