I am 27 and just now going back for my grad school degree. I am scared as all get out. However, I'm exhilarated at the idea of going to school and getting to start a new career. I have been working so far outside my chosen field, it's ridiculous. I say go for it, I wish you the best of luck in all of your adventures!! (P.S. When you become a PT, you want to come to TX and fix my knee? )