I've heard that you worry too much.
No, I'm not reading your mind. It's just how most folks have conditioned themselves to think after years of living.
When you consider it, a little worry is necessary. Heck, if you didn't worry, would you ever pay your bills on time?
The challenge is that 90% of concern will never have any impact on your life, except to give you a case of Acid Reflux.
The next time you find yourself grinding your teeth and mashing your fingers, just step away, take a breath, relax, and gather the necessary information you need to understand what's going on at that moment. Doing so will change your perspective. It will give you control.
Once you've grounded yourself, you can face the 10% of real problems and get working on a solution. You'll also know which 90% of your worries to ignore - preferably while you are working on your tan at the beach.