Some funny replies for sure, but seriously ( if possible? ), hypnotherapists are helpful. But like any other profession, someone had to be at the top of the class and someone had to be at the bottom. I used one many years ago for playing pool. I had excellent results. I was also trained in self hypnosis. But like any skill, use it or lose it. Whether it be trap, pool, golf, tennis, etc., it can work. It depends on your ability to concentrate and your ability in the sport. It cannot make you any better at the time than you already are. It still takes proper practice.
Good luck finding someone. It does work.
Nubs Wagner.