I don't know how good of advice this is, but I'll share what I'm doing.

I believe in "don't be scared; be prepared" and "I'm not paranoid; I'm ahead of the curve."

TL; DR: make a hobby out of your fear.

Basically, there's some comfort in learning about how to secure your well-being, whether it's by having safe places to turn to, learning how to protect your home and family, securing your tech from spying, having a "kill switch" for your phone, etc. (like GrapheneOS's duress pin).

Join like-minded communities. Do things that give you back peace of mind.

Edit: I don't mean to make it an obsession, though; I'm saying that you can turn what frightens you into your motivation to seek positive outcomes.

Your feelings of dread are legitimate, but they should pick you up, not push you down.