Writing hack to defeat the doubt (aka, write to an audience of one)
How do you stay engaged when the process isn't fun? How do you keep the faith when you feel like everything you write is shit?
We create what others need
Discussing the process feels like a possible jinx, and I suspect that this is at least part of reason people tend to be hidden and secretive.
You gotta not doubt it
Writing is only one of the tasks of writing, the other is believing that you can and should and have something worthwhile to say.