Credit clean-up takes time. Even if you were able to clear things with the credit agencies tomorrow, your actual reporting would not change for months, until the next agency cycle. Therefore, cleaning up your score is a good idea, but it probably won't effect your denial in a positive manner until next fin-aid year.
Private loans have high as shit interest % and, with your low credit, you either will be denied for those, too, or be granted those already high % loans with added % on top of that.
So, the only thing I can say is, keep doing what you are doing regarding credit clean-up. Also, unsolicited, I would argue that paying for school with private loans is a bad idea. It means, obviously, you are basically paying for the majority of your education with loans....again, bad idea. People get upset when this is ever mentioned, but I'd recommend retaking the LSAT and sitting out a year to clear up your credit. Get a job and pay down debt, etc. Study, kick ass on the LSAT, reapply, and have much less to worry about. Further, you'd probably be going to a btter school for employment prospects, although I have no idea where you are applying now.
thanks for that input, i'm actually going to my 1st choice in terms of school, my lsat was far above their median but i had a low gpa. so far they're not willing to up my scholarship because i'm in-state, but i'm going to try to negotiate that again