Smashing game - first play over this - it's only 7 moves.
Now White is currently 1318 which is 300 more than you so you
can see grades mean nothing on here - nothing at all.
A nice sensible opening and over all good chess.
Then it happened.
White blundered the piece, and blinded by your opponent's grade
you thought there was a trick and got yourself all confused.
I've taken the game from the moment you should have taken
the Knight and given a plausible continuation where Black sacs back
the extra piece and uses the passed pawn.
This is what you do when you have an extra piece - sac it back
to expose the King.
There might be deeper wins, but I'm making it as simple and
as instructive possible.
Winning with an extra piece with a pawn on the 7th.
Two plausible variations. The first brute force. The 2nd is White
trying to make messy by getting the Queens off.(this is cute).
One position to note.
Note the simple Rook lift 11...Rf5 won't do as 12.Qa8+ is a draw.
maybe even a White win.
You must always be careful when playing the winnning move.
Also found a cute line if White tries to make it messy and get
the Queens off.