When I first got into screenwriting I was told to read Aristotle's Poetics, Syd Field's Screenplay: The Foundations of Screenwriting, Lew Hunter's Screenwriting 434, and host of other books by brilliant people that I devoured religiously. I was a regular at screenwriting workshops, took classes, and felt very much the screenwriter despite not having wrote any part of a script. It's like a fighter that always trains, but never gets in the ring to go to war. In theory I knew what to do. In practice I was unproven. It's like you really never know if you can take a punch until you've been clipped on the chin.