Write Anything Rather Than Nothing
In Dodie Smith's classic coming-of-age novel, I Capture The Castle, the teenage heroine locks her author father into his room after his writer's block has forced his whole family into penury. She instructs him: "Write anything - write 'the cat sat on the mat' if you like. Anything, as long as you write.""
You can go years without suffering writers' block. Then it happens.
The bad news: it's hell while it lasts.
The good news: you'll get over it.