When I broke into TV writing, it was in tandem with a clever gent named Dennis Palumbo. We were a team for a few years, then parted friends and went in separate directions. His involved writing movies and novels, and eventually also becoming a very successful psychotherapist specializing in the obstacles that confront performers and writers. I have never seen him in his new professional capacity but just having lunch with the guy, as I do not often enough, convinces me he's very good at what he does.
I don't know when it was recorded but Dennis did a 27 minute interview with Barry Kibrick for Mr. Kibrick's PBS series, Between the Lines. It and many other interviews are online at this website…and if you're a writer trying to get a better understanding of process and the many things that can stop you from writing, you will profit from watching this conversation. It's a little tricky to get to but it's worth it. Go to the page I just linked and scroll down until you find Episode 1133, the one featuring Dennis Palumbo. You'll be glad you did.