on Writing Forward site:
It happens to all writers. You’re cruising through a story, and all of a sudden you hit a wall. Your characters freeze up, your plot stops cold, and you’re stuck with nowhere to go.
You’ve hit a fiction writing roadblock.
All of your ideas have evaporated and you sit there staring at your screen with a blank look on your face. Where were you going? How did you write yourself into a corner? More importantly, how do you write yourself out?
Fortunately, there are techniques you can use to break through the creative blocks that arise in the middle of a storytelling project. Some of these techniques also come in handy when developing ideas for new fiction projects.
The main thing you need to remember is that hitting a roadblock does not have to mean the end of your story, your fiction writing, or your creativity. You just need to reboot and see your project from a fresh angle.