This happened to me last year. It was incredibly difficult working my way back up but I have been working a job since a year and am out of debt.
The grief/toll will take time to go away. Mine has still not gone away but it gets better as time passes. Suggest that you seek help for this with a professional therapist. Meet new people and have different experiences. That helps a lot.
I don't think the writer is being fair here because he is putting the lab-leak theory in the same category as the moon landing hoax. I don't think the situation is that simple. Both zoonotic and lab-leak are hypotheses and the evidence will slowly start pointing towards one of them. Why try to take a stand when one doesn't know enough?
Try making some art. You can use art apps to remix old photos and also to generate completely new pieces.
Not sure about iOS, but on Android there are fantastic apps like Glitch Lab, Mirror Lab, and so on. Here is a link to art made on Android using Mirror Lab: https://www.instagram.com/mirror_lab/
You might want to give Org mode (in emacs) a try. It was actually created to quickly take notes in a structured way. Emacs can seem intimidating but you will need very less time to learn the basics, especially if your goal is to just use org mode for note-taking. Link: orgmode.org
Grateful for your hard work on this, Brent and team.