I’ve discovered a breathing technique I like to use when my mind won’t slow down at the end of the day. You breathe in one nostril while holding the other closed, and switch the nostril you’re holding closed and breathe out for ten deep breaths, then switch. Was that clear? Breathe in the left nostril, out the right 10 times, switch and breathe in the right and out the left 10 times. This isn’t something you can do in public; since it looks very silly switching back and forth holding a nostril closed, but it is relaxing. It clears all the crazy book deadlines, plot twist that aren’t coming together, taxes that need figuring, etc, the pure panic of how I can possibly get it all done, by keeping the mind busy remembering what number you’re on and what nostril you’re holding. If you don’t believe it works, try it. It also works better than counting sheep at bedtime.