The important mental game elements of a pre-shot routine include (1) planning and commitment, (2) confidence, (3) focus, and (4) trust in your skills. These are universal; no matter what the sport or the task.
You’ll want to tap into your dominant learning style in your routine. Most people are a combination of visual and kinesthetic performers. However, you’ll discover one mode of learning that may help you perform better.
Run through your pre-shot routines in the warm up. Use the last four or five shots to establish the rhythm of your routine before the game. Be mindful of the phenomenon of “going through the motions” without mental intensity.
Check out The Focused Athlete CD program for tips to improve your focus.