We are not mind readers. Is this what you are talking about? You could help people by posting the game position yourself.
According to Stockfish, 28 ...Bxc3 was far from your best and you would have had a much tougher time after 29 bxc3.
28.. Ba4 was the crusher.
//The rule is never to look too closely at bullet chess games and to never post one without looking at it first.
http://www.chess.com/livechess/game?id=1124365167