You play alot better than 800 lol but maybe there was an inflation rating when i played also the knight wasnt trapped and the other knight can go back to the starting square but hell be severely hampered
What I'm missing is consistency, as it's not often that I can play in a properly quiet, peaceful environment (neighbors, dog, or wife always seem to be making noise in some way). But I'm definitely improving.
Also, that first knight I captured wasn't what I trapped (that was just a blunder on my opponent's part), it was the queen and the rook at the end.
Learning how to trap pieces (especially the "wayward queen" is important for new players. I'm rather satisfied with this game, as I'm recovering from a 150+ point tilt.