Need some advice as a new screenwriter. I get the stories playing over in my head until the scenes seem right and this is why I started screenwriting. Now, when I'm in the head-space of screenwriting, I can't seem to stop. My issue however, is how to sleep during these moments? I looked down one moment, 8:30pm, no problem. I look down a moment later, midnight. This would be fine, except I have a completely different 9-5 type job. How do people switch off their stories in their heads, to allow for sleep? I don't have this ability. Help please.