Over Think, Overkill?

I've heard the say ing almost all my life.
"Overthink, overkill."
I am always overthinking, though I have yet to kill anything.
Still, I do get the point.
We obsess when we become concerned, anxious, worried.
Sopme of us can't sleep.
Other can't eat. or can't stop eating.
We tune the world out...
while we tune into our own emotional tuning fork that sounds, internally, like fingernails on a blackboard.
We can't stop thinking, worrying, trying to control that which is uncontrollable.
Truth be told, all this worry, anxiety, self-loathing we feel....
It's all in our heads.
If you can shift your thinking, you can shift your world.