Losing position for white

Today I played a number of games, but it felt more like I was playing an AI again till my opponent blundered their queen, and later I had to sacrifice mine to catch a pawn trying to make it across the board along with a newly promoted queen that I took using my last rook, which was also sacrificed, but when it came to me getting a pawn across it was protected by my bishop, and put white in a losing position, since it was impossible for white's rook to take?

White resigned of course when the outcome seemed obvious, and the game predictable and one of white's pawns would of also had been diagonally across from my bishop had it moved forward and white wanted to call it a draw, but you never accept draws when you are winning?