Writers' opinions of 'writer's block' differ, some don't believe in it, some have never had it, some exist only as the block personified, others think they can escape it with sleep, or sacrificing a fatted calf to their muse. Whatever, if you've heard of it it's a thing, and even if you don't believe in it, keeping your writer brain oiled like a well oiled writer brain, helps keep things running smoothly whether the block exists or not.
Write every day is an oft used truism for writers, and for me it's palpably true that I need to write something, even if it's only a sentence fragment every day. For others, they'll sit for an hour or so,
Proust famously sat down ...