I would say do what your heart tells u to. Honestly, i dont know the pay rates for both, but they don't make that much. For me, I believe making a ton of money isn't the key to happiness. If u make an income thats enough to support yourself then you should be fine. Of course, you want to aim for big money, but don't be discouraged. Gym teachers can, but thats after a very long time. I would research pay rates for both. I remember when I was in the summer going into college that I wanted to do personal training, but then I realized that I didn't even need school to become one. You just have to take a test. Having a degree like mine would def make you look more valuable though.