Pick your fitness trainer carefully. There is a huge difference in training and qualifications, as well as experience. If golf is your passion you want a TPI (Titleist Performance Institute) Certified Golf Fitness expert.
I am TPI Certified and I also recommend John Thomas, who is a Physical Therapist, Strenght and Conditiong Coach and TPI Certifed Golf Fitness expert.
Contact me for information on how to reach John.