Copious amounts of chemical filters in order to avoid processing reality.
Or just disconnect from the false internal narrative that things were ever going to be okay. History is one big story of shitty things happening to good people. If you get rid of the just-world fallacy and accept that this part of humanity just crops up sometimes, you'll probably be happier.
Yeah the world is collapsing, it does that every 50 years or so.

I feel the same way but for a different reason.
The more I've grown, the more I've come to distance myself from the cause of humanity. I used to think that capitalism was the problem, but my disagreement with people is something far deeper. In 10,000 years, when a there isn't a single living memory of war, hunger, scarcity, and racism, children will still bully the fuck out of the ugly and neurodiverse. There is something instinctual in humanity that seeks to exclude others. People make outcasts of those they deem unfit for their tribe. You can extend the definition of tribe, you can even attempt to smother the behavior, but you'll never be able to change that essential reflex.
"For although nepenthe has calmed me, I know always that I am an outsider; a stranger in this century and among those who are still men."