Why do I worry so much about stupid stuff?

I think this is anxiety. Used to be when I had untreated anxiety if I didn't have anything catastrophic to worry about my mind would latch onto something unimportant to worry about. It was so tiring - but then I figured out that I was doing that and got some anti anxiety medication - helped tremendously. Maybe simply being able to know what you are doing and why would be enough to correct the behavior as well.