Answer:
Getting into massage therapy is as easy as enrolling in a school near you, in a private school, career education program, or community college program.
Most states have a massage therapy regulation board so all schools in those states have to have their programs approved. What may help you decide is to actually visit the school you intend to attend to get a feel for their atmosphere. Since you will most likely spend at least 500 hours either giving, getting, or talking about massage, it would be a good idea to make sure that the school has a "positive vib."
Also, a lot of schools have a career services department that will help you get a job in massage therapy once you graduate so you can start your career in massage therapy after graduation.