I have the same problem. I get about 30 seconds of calm when I wake up in the morning and go pee, after that the flood gates in my head are open. I've found that skydiving helps that. Seriously. Nothing helps like getting the shit scared out of you while taking in a great view.
* You could also try some intense exercise. The natural endorphines your body releases after you shred your muscles are great for reaching a gentle calm afterwards. Also makes you look better
Anyways I wish you luck because I've been there....