feeling sad :(

This is my game against computer 4 impossible.computer did a mistake but i couldnt use its mistake to my winning and i feel foolish now :(

please give useful comments about my mistake and what moves i should had do but i didnt do them?

link of game:

http://www.chess.com/livechess/game?id=537015448

Im not that advanced as far as chess but i did like for move 29.... Rb8 30 Rd4.... Bd7.. wins the pawn i believe. looks better then giving him the push opertunity. and once u let those pawns go later it lost the game.

Jakenator:

29.... Rb8  loses bishop.

If you are thinking 29.... Rg8, that loses the knight.

mahdi: 11.dxe5 by white cramps your center. were there other options instead of taking the knight with your knight on move 10?

thanks Jakenator and BhomasTrown for help.

jakenator: bhomastrown said true about Rb8

bhomastrown: i think mistake was in 9 not 10>>>Bd6 was mistake.

i was in pressure in move 10 and i couldnt do better choice overthere

After 35. Kh1 you should be able to win using the back rank threat. 

I analysed this game by chess.com analysor it said:

(1.09) INACCURACY - Perhaps better was 10... Nge7

wow nice plan FancyKnight.i should practice these positions more.

thanks for your helpful comment