I think by 35 you were already sunk. As far as I can see, with perfect white play, there's nothing you could have done.
That said, you did give up a little more material than required. On move 35 you didn't need to move your king at all. After the same moves by white (which are just as valid against other black moves). your king still ends up in g8, but you could use that original move to advance the c pawn (c6). From here your position is a little bit better, but still not really winnable.
The second thing is that you could swing your bishop to e2 (via a6) instead of trying to move the rook around. From here, the bishop is threating white's nice pawn chain and guarding againt most of the good knight moves. Moving the rook leaves both your bishop and king undefended. The rook can support the bishop attack from the back row.
When it was my move on move 35 i would have moved my king down one squarei could have but then after that i don't see how i could win maybe someone might be able to help me by telling me which moves i should have made to solve this problem without losing alot of material? http://www.chess.com/livechess/game?id=761773563