The infamous “writer’s block” metaphor is a crappy one.
There are multiple approaches upon encountering a so-called writer’s block, or any other kind of roadblock, for that matter. You can either go around it, go over it, break through it, or stop, quit and call it a day.
Whether it’s writing, running a business, or life in general, obstacles are bound to pop up every single day. Without them, life wouldn’t nearly be as interesting. Obstacles don’t block the path, they are the path, according to a Zen proverb.
Don’t fight against obstacles. Fight with them.