Massage therapy is an awesome career. If you're right for it. The best way to see if it's for you is to go take a tour of a school, ask the administration a zillion questions.
It can take up to 5 years to really build your own business. I know some places are also now requiring two years of college before they'll accept you. Not sure where you are, so check the requirements for your area.
What specific questions do you have? Feel free to PM me if you'd like