Social security disability denied to acknowledge my disability and now I can not file again unless I work?

I have suffered grand maul/tonic-clonic seizures since I was 5 doctors refused to document my disability but when asking my state senator he says because I had a witness and they dismissed the witness's testimony I can sue SSA I live in indiana and have looked up lawyers but I can not find any to actually sue social security administration and no one will hire me how would I go about looking for lawyers that will actually sue them instead of work for proving your case?