The day I got home from college graduation with a degree in Multimedia, I put it on the mantle, sat down on the couch, and said "Well, damnit, I don't want to do that anymore!" I'm currently looking for a job to pay the bills, and I want to go to Grad school to get a Doctorate of Psychology.
Remember, just because you graduate with a degree in one thing doesn't mean you're tied down to doing that thing the rest of your life. If you like Biochem, do biochem. You can go on to get a master's in art if you want. You can go to grad school for biochem, but keep doing art on the side as a hobby, then one day when you have plenty of money and are tired of the biochem, you can open a gallery or something.
The way you're thinking about it now- it seems you've convinced yourself that whatever major you graduate in will automatically lock you into doing that job *forever*. Nothing could be farther from the truth- the most talented artist I've ever met, who is now doing jewelry in a style that isn't seen anywhere else in the country, majored in Accounting in college.
