I got a win but kinda weird

I am black

And the game review said I missed checkmate.

The battery!

Holy hell you had a king and queen fork for six moves!
14. ...Nc2, forking the king, the queen, and the rook

33. Qf2 is checkmate, I see
Don't stop practicing, but next time, keep and eye out for forks. Even better, try and set up a fork!

okay