An organization's reason for being, like that of any organism, is to help the parts that are in relationship to each other, to be able to deal with change in the environment.
Depending on what your interest in theater is, I always recommend working on plays. It's a great way to be introduced to the field, and also a great way to be seen by agents and representation. I'm also a great advocate for studying acting at a drama school or a college.
I spend most of every day writing. I like to write every day if I can. I don't start extremely early.