It's feast or famine. However, I'm lucky to be married to a nice woman who is willing to support me during the slim times. I started writing with professional intent when I was 15, but I didn't make my first professional sale until I was 29, just over 10 years ago. I've published 90 percent of what I've written since then. Two of my novellas have been optioned, but I rather doubt either of them will be filmed.
Stories can take anywhere between six hours and three years, depending on their complexity.
Novels generally take a year to write. My wife's here, guys. Just had to say hi. Since she's here, I have to defer that comment. I'm a gentleman.