Did you resign immediately? It's a bad mistake of course as you say but I think there are still chances to draw. The knight is inferior to the bishop in this scenario.
Blunder Town


You can't corner his Knight - 1...Bf8 2.Nh8 Bg7 3.Ng6 Ke8 4.h4 and the Knight will save itself. No matter what configuration of moves you play, you can't trap it.
ke8 expecting my opponent to put his knight on h8. I was thinking he was going to resign. So he just took the h6 pawn and was no longer cornered. Ouch. Not even an oversight really. Just a flat out blunder. No excuse in a daily game. Anyway just sharing how much this one hurt