Fretting grief the enemy of life.
The future will be what it will, and fretting about it will only make your fears more likely to come true.
A lot of my upbringing was about denying or fretting or evading,
fretting at trouble only doubles it.
If you're gonna fret, fret over something you can change. Then stop fretting and do something about it.
One attraction of Latin is that you can immerse yourself in the poems of Horace and Catullus without fretting over how to say, "Have a nice day."
You can never be free until you develop the mental strength to stop fretting over things you cannot control.