I used to have a plaque on my wall titled "Why Worry".
Why worry, either you are sick or you are well. If you are well there is nothing to worry about.
If you are sick, you will either get well or you will die. If you get well there is nothing to worry about.
If you die you either go to heaven or hell. If you go to heaven there is nothing to worry about.
If you go to hell you will be so busy shaking the hands of your friends that you won't have time to worry....
But truly, a couple of decades ago I realized that most of life is out of my control. It took a while but I was able to accept that those things that were out of my control didn't deserve any of my concern. Now I focus on my 'area of control' and play the casual observer to the rest. I can vote for those in public office, accepting that my vote is only one of millions so it has little affect. And I can pray and hope that a higher power is in fact looking over us and possibly helping.
Maybe when R. Daneel Olivaw creates the galactic Gaia it will all be good.... ;-P
I hope nobody is offended by this, but that is also out of my control.