True story: league match, a few years ago, I beat a guy 0 & 0. But every game was close, just that I won the big points. Opponent was just getting back into the game after a long layoff. I could see that he had game. One year later, we came across each other again in league, and he beat me in 3 tight sets.
Don't get discouraged; get out there and work on your game, and next time you will turn the tables!