Ok, so my natural hair color is brown, kind of boring. I dyed it black like 3 days ago, and I HATE IT!! I want to know how to get it a different color, without paying an arm and a leg, I'm a poor college student.

You will have to essentially strip out the black color and then put a toner onto your hair to get it either back to the brown color it once was or change it to another color. Not hard to do, but easy to mess up. Suggest you visit your local beauty supply house for products and on the spot advice.