My opponent was a young guy, never played him before. He played Queen’s pawn, here is the game. His early attack, starting with h4, for a long time seemed not serious to me.  I missed a nice tactics with 13. Nxg4, it was my only chance in this game.

I did not realize how bad was my position until I made a fatal mistake with Ne4. His Rxh2 effectively finished the game.