The way you speak and your inner dialog will have a direct effect on your golf game. If you say, "I hope I'll make this putt" or "I hope my golf game improves" nothing is going to change. Change comes from doing. You got to get out there and practice.    You've heard it said, "How do you get to Carnegie Hall? The answer lies in practice, practice, and practice."

Jack Nicklaus said, "Confidence is the golfer's greatest weapon." Meg Mallon, Women's Open champion said: "It's confidence, confidence, confidence, confidence."

One can not succeed at being pretty good or the very best unless they practice. Lee Trevino said if you practice enough and get tremendous amount of confidence, and that's where confidence comes from.  

A good game comes from practice.  If you practice, you have confidence. You have confidence because you've practiced.  Not only will you withstand pressure situations; you'll have a greater perspective on the game.