What in the world is stopping me??

I feel like there is something greater out there for me. I want so badly to go back to school. I have found the course I want to take. It's exactly what I want so what is stopping me from just signing up?? Over the last few months I've realized that I want more. I want to help people reach their goals. I want to focus on nutrition and become a health and wellness consultant and weight management consultant. I already have so much knowledge in this area because of what I have accomplished why not spread it around and help other people and give them the knowledge they need to reach their goals. Most people out there have to idea what good nutrition is. We think we do but in reality. NOPE!  We all need to be educated so much in this area so we can live long, happy and healthy lives. We have so much more in us that we can do this. With that being said I guess I better overcome my fear of going back to school and possibly changing careers. I'm only scared of failure that's not so bad I guess!!