Thought is extremely powerful. After a not-so-good round, pull your attention away from all thoughts about the bad shots.
Build a library of positive thoughts!
Focus on what you did right. This kind of thought-discipline not only trains the mind, it also creates a library of good thoughts. So you can call on them while out on the course.
Confidence is the key ingredient with any shot, whether you are laying-up or going for a tight pin. If you commit 100 percent, meaning zero doubt, then chances of success get higher and higher!
Spend less time focusing on the poor shots. Instead, spend extra time embracing the good shots to build your Library of Confidence!