Technique! The very word is like a shriek of outraged Art. It is the idiot name given to effort by those who are too weak, too weary, or too dull to play the game. The mighty have no theory of technique.
I went to a very academically competitive high school. So I was always quite studious and quiet, just to keep up with the other geniuses who were in my school.
If you're not just a little bit nervous before a match, you probably don't have the expectations of yourself that you should have.