When I least want to, when I have a list as long as my arm of things I want to do, when people are asking me for their attention and I can't say no, when I need to sleep but want to get up to walk in the pre-dawn darkness, at these moments, I remind myself of this saying I heard some time ago...
The hurrier you go, the behinder you get.
I have had it scribbled on a bit of scrap paper which I hide away and then find at the most timely moments as a reminder of what I need.
Slow down. Pause. Be still. Breathe deeply.
And then start again with a clearer and more peaceful mind.