"Wisely and slow. They stumble that run fast." -- William Shakespeare, Romeo and Juliet.
* Patience is a virtue. Good nerves are essential: this doesn't mean you shouldn't ever feel nervous during a game (boy, do I wish I could manage that!) but that you should not let your nervousness tempt you to poor decisions: e.g. make back away from a critical line, or make you try to force the issue too soon.