I was listening to Dr. Wayne Dyer and he quoted someone with the following. It makes no sense to worry about things to which you have no control, because you have no control. There is nothing you can do, what is the point of worrying.
And it makes no sense to worry about things that you have control because you have control and can make the changes.
When you change the way you look at things, the things you look at change.
Something to ponder.