The writing mind is like an ice cream maker. It will always produce ice cream, but unless you intervene, that ice cream will always be vanilla.
I can sooner quote LL Cool J than T.S. Eliot. (And I had to look up the proper spelling of “Eliot.”) There have been times I've opted to watch Tommy Boy (again) over whatever esoteric film has been lately discussed by critics... When I find myself on a death-spiral of doubt and insecurity and comparison and other soul-crushing habits of the mind, I remind myself: Just put your head down and do the work.
(which, incidentally, I usually call "coffee, tea or me" by mistake).