Grad School.
It gets better. Soon you'll be making what your friends from college were making five years ago.
Between PhD comics and this comments, I don't understand why people from the US just don't go to grad school somewhere else in the world. If you are in science, PhD is almost free here and with the scolarship you can lead a decent life.
PhDs are (often? usually?) free in the US as well, though you may have to be a teaching asssistant or research assistant for some number of semesters. For instance, my PhD was tuition-free, plus I was paid a (low but livable) stipend, for five years, of which I had to TA for one year and RA for one year. (For my sixth year my fellowship ended and I had to get a job; but I kind of guilt-tripped my advisor into paying my tuition for that year as well.)
Actually now that I'm teaching in Canada, I'm surprised by how
little PhD students here are paidor at least, they seem to have to TA a great deal more and aren't guaranteed much funding by the university. Though I don't know if this is a difference between the US and Canada, between private and public universities, or just between the specific university I studied at and the one I'm teaching at.