I don't consciously do anything to maintain a unique voice.
Contrary to what many writers imply about the process, nobody forces a writer to sell his work to the film industry.
All writers are mimics, and I'm not interested in picking up somebody else's style or voice.
Being comfortable isn't the way to learn to expand your abilities.
I don't have dry seasons, because I don't allow them.
There are days when I intentionally don't write. For instance, I never write when I'm traveling, because travel is a situation where I can learn more by looking and listening than by working.