Aged Corporation Secrets

I am a college student and am looking at careers in the fitness industry. I previously had wanted to major in business but the thought of spending all day in an office working working for some corporation is becoming very depressing to me and I feel it would lead to a low level of satisfaction in my life as I age. I consider myself to be intelligent and dedicated and am want to receive a bachelor’s degree as well as any other necessary education so what I am wondering is what career options are there for me outside of being a basic personal trainer and what type of income can these jobs provide? Any input is appreciated.
I wanted to mention that I live in southern California and would be willing to move around the area as I get older.. I get the feeling that there are a lot of opportunities in this area in the fitness field in comparison to other areas (I used to live elsewhere)

You could get into sports medicine – nutrition, sports massage and physiotherapy, diet and nutrition. Depending on how far you want to go – you could be the sports medicine person for a football team. Travel, celebrity spotting….. Good luck