What kind of education do you need to be a physical therapist?

I really have no idea. But i am a freshman in high school and am interested in becoming a ppt. I would like to know what schooling is required to become a physical therapist and what additional training/schooling does it take to become a pediatric physical therapist. Much of the information i have looked at is very confusing, and i would like to know from someone who has taken the schooling and has become a ppt. Thanx