I need help with Student loans!

Ok, so I've been in college for about two years, and last semester I got my financial aid taken away halfway through the semester due to my grades from previous semesters. (I did get my sh*t together last semester, but of course that doesn't matter now.) So now I owe the school $13,000, and they will not let me re-enroll until I pay them back.

I tried to get a federal student loan, but they will not pay for previous semesters, and I am unable to get a private student loan because I don't have a co-signer.

Do any of you guys have any idea how I can get this taken care of without having to take another semester off? If I have to, I am willing to take this next semester off and work my a** off, then go back in the spring, but I'd really prefer not to do that since I'm already so far behind in school.

Thanks for any advice you guys can offer.