There's this thing on Goodreads where, as an author, you can answer questions about writing. This was one of them. And here's my answer.
Writer's block is an ostentatious term. It's a ridiculous way of describing the fact that somebody doesn't feel like doing something that's at least nominally difficult. Writers don't need to have their own special brand of "I don't feel like doing hard things today."
Which makes it no different from, say, builder's block when carpenter doesn't feel like getting out of bed and doing his job on a rainy Tuesday morning.
So, the question is really asking how I deal with not feeling like doing something hard. Well, the same way anyone else does. If I have the option of not doing it right then, I don't do it right then. If I don't have that option, I do it anyway, because life is hard, and that's the way it is.