Chap 13 and student loan

I have private student loan debt of 330k. I have them in forbearance right now and have talked to a lawyer about chap 13 so I can get on a reasonable payment plan. Right now my payment is 2500 a month, but my monthly pay is 2000. I dont even make enough to pay this and thats not even including 50k in credit card payments that i have been paying on or just reasonable other expenses (clothes food housing). With that said, My lawyer and I are going to file an adversary to see if we can get some of this discharged. I know private loans are not dischargebale but what do you think my chances are with getting atleast some of this discharged? any help would be fantastic!! Thanks!