After the end of a decade-long relationship and at the same time, a decade of working at my company, and with full-blown depression, and pissed at the same time

After the end of a decade-long relationship and at the same time, a decade of working at my company, and with full-blown depression, and pissed at the same time for a paycut I was forced to take (not based on performance, but due to "COVID cuts") after watching at least a hundred people get laid off in the past 3 years, mostly blamed on COVID, my performance is under review, despite the fact that I pulled in over a half a million dollars last year for the company, more than any other of my coworkers, so it definitely sucks. I've watched everyone else slacking yet I'm the one under review. It makes no sense to me. But it's not the first time and not the first supervisor to do it. I just happen to be the one who has to deal with it all. I had to sign something at work from HR stating I would improve. It's definitely one-sided when they take your supervisor's word over the ability to work efficiently enough to pull in the most amount of jobs and do the most amount of work. I'm still confused by it, but the one thing I'm still glad about is the remote work. When my supervisor recommended I return to an office, I refused and let her know that would cost double salary + half to deal with other people, their germs, and risking getting COVID. But I'm positive that this too, shall pass. Like I said, not the first time I've been under review. I am just "that guy" that brings out that "power struggle" in every supervisor, and they always feel the need to exert that dominance over me. That's happened for every job I've ever had. Keep a few side projects handy. Keep doing your best. I recommend joining a gym especially one with a pool and a sauna and a jacuzzi just to get yourself out of the house and doing something other than staying at home. It helps to feel that you are "doing something" and might even improve your chances of meeting people, socializing, or at least being around other human beings.