You can get a GED. You should look into that. You basically have to pass five tests that say you have the equivalent of a highschool education, and then from there, 95% of colleges accept them, although they do require SAT's as well. You can also go to community college for a bit and reapply to "real" college.

All is not lost, OP. Although you do sound incredibly depressed. Speak to a doctor about anti-depressants if you must.