One thing that helps me to calm down, but only when I am safely at home alone, is to 'cocoon'. I sit in my recliner, cover my entire body with a blanket so it's very dark, and put on headphones and listen to music.
I have this 'wered' thing about breaking songs down to individual instruments and then listening to just that instrument, but play whatever music you like and listen your way.

If you decide to try it, I hope it helps you.