As a table tennis player one thing I have learned over 30 years is that your first opponent is always the game itself, the technique and the positioning of the ball. If your table tennis technique is in good working order you won't be worrying what your opponent might do if you miss. If your playing well then their is a good chance you might get your opponent worrying about you. Be philosophical about things, some players beat themselves up even before the match starts. Do not feel the fear and believe you will win. And its so important to impose your strengths on your opponent before he or she does it to you. Games are to eleven so you need to be quick! The worst thing that can happen is that you lose.