I'am considering testosterone therapy. i have little body/facial hair. and feel behind on development and want to be taller and stronger. advice?

Go see your doctor: You "feel" behind in development but it's not clear that you've been "diagnosed" as behind in development. Sure, most people want to be taller & stronger. Might as well throw in rich & beautiful, too. Anyway, testosterone therapy is not a do-it-yourself project. Go see your doctor for diagnosis & treatment options. Check out http://www.Livestrong.Com/article/295067-what-makes-people-grow-taller/.