4. Be Positive
Are you always positive over every shot? Let me put that question another way: Have you ever pulled out a water ball on a par-3 that required a carry over a lake or river or some other type of dangerous hazard? If so, it's easy to make the case that you weren't totally committed to a successful outcome, nor were you necessarily brimming with confidence or optimism. While it's true you need to identify the trouble spots on a particular hole, you also need to sharpen your focus on creating the proper distance, direction and trajectory that will put you in position to score. In order to do that most successfully, it's crucial to focus on what you want to do before hitting your shot, not on what you don't want to do.
Here's a simple test. Close your eyes and try not to think about a red apple. If you're like most people, a red apple is just what pops into your mind. You see, your mind doesn't understand don't. If you give yourself a cue not to do something, like hitting the ball in the water, out of bounds, or hitting it fat, generally one of two things will happen: 1) the power of suggestion will take over and you'll actually do what it was that you were trying to avoid, or 2) you'll compensate with a swing motion that sends the ball in the opposite direction of the trouble and into just as bad a situation.
To develop a more positive attitude, try this preshot routine. Start by evaluating the lie, the distance of the shot, the wind strength and direction, and take note of any obstacles or hazards. Visualize a successful outcome of the shot and take a single practice swing to restore the feeling of the swing you would like to make. Once you're over the ball, commit to the shot, focus on your target and let it go. Practice this technique consistently and you'll soon find the quality of your shots improving.