Guidance requested

Hello respected members

I just finished this game (below). I was playing black and won the game.  But, I am not much satisfied with my move; and, somewhere in the back of my mind, I feel that I have missed the good opportunity to finish the game much earlier.  The person playing white might have also noticed my weakness; and, therefore tried to fight till end.

Can you people be kind enough to guide me?

what time control is it? we should not spend too much time trying to analyze blitz. post your game with longer time control for analysis, and write down your thought more thoroughly.

first look at the game. i spotted you missed a forced checkmate on move 34. after whites 34th move the white king is stalemated, all it needs is another extra piece for check, and its game over

34....Rxd6, 35.Nxd5(or 35....Rxd3+ next) Bxd6+ 36.Qc5 (desperado) Bxc5 checkmate. you need to work on your tactics. solve tactical puzzles and you will find more knock outs in real game.

I think you mean 32 ... Rxd3?  I see nothing better from there for white than losing queen and a pawn or two for the rook.  The checkmate threat is Qb3+ Kb1 Rd1#.

Was there actually something a turn earlier?  I don't see it.

Thanks to all for your time and effort.