Study the rules so that you won't beat yourself by not knowing something.
Don't worry. Just leave everything in the hands of God.
It's not just enough to swing at the ball. You've got to loosen your girdle and really let the ball have it.
You can't win them all but you can try.
The more you practice, the better. But in any case, practice more than you play.
I don't seem able to do my best unless I'm behind or in trouble.