Can't even fucking talk to any of my various therapists about this shit. No I can't just "not think about stuff I can't control". I'm autistic, have severe general anxiety, and pretty bad ADHD that medication only marginally helps. I've already improved immensely and stopped worrying about most things.
Except this one.
I organize too don't tell me to do that
Also texts about revolutionary optimism didn't help either. All that shit was a hundred years ago in a completely different state of world
If past books didn't work you might try suggestions here, but what helped for me was more changing the local systems I'm in. That means focusing more on the moment and in the current task in doing i.e. work, stuff that is relevant at the moment, that with friends, doing therapy and having used a couple of meds, however the integration of friends and structures which focus me on the moment and my body sometimes helped.