The overall level of the game was poor(sorry-although it was more the opponents fault.). In the "endgame" you didn't exchange his last piece (leaving u with a rook and pawns vs king and pawns). Then later after allowing his rook to get a pawn and become active u exchangeWhy? You realize he has more of a chance with a piece in addition to his king(although still lost with the rook)
32 rxe3 and just push the c pawn up the board
two things, was the middle game correct, and was the endgame correct, also what was the level of the game overall