I exactly know what you mean...have 3 startups, 1 NGO and a foundation. Working and living in Austria and 2-3 times per month flying to Serbia where my business is. 80-100h work week.
The spinner might help.
I'm meditating and one special advice that i don't suggest to everyone. I'm making 1-2 times per year a magic mushroom treatment...that heals my soul