I would say it is more your opponent's mistakes that contributed to victory.
i agree with Supermancool...your opponent made many mistakes. for Instance, 9...Kd7??, moving the king and forfeiting castling rights was a blunder, and there were many others...
.... and OP took advantage of his opponent's mistakes and made mostly accurate moves. I detest this "you should be not happy about that" crowd. Good job and keep going :)
#2 like every single chess game in the history of mankind.
Yes chess games are not won. They are lost. Obviosule there ways to induce errors.Besides claim was that it was his best. Not a new classic to studies years after