burnt out on week 4

“It is important for me to take care of my mental, emotional and physical health at work”
This was the takeaway from therapy last week. I don’t know that I’ve done particularly well with it so far.
I learned one of my coworkers supports Trump and I would be lying if I said that didn’t bother me and loom over my shoulder in the back of my mind all day every day. I try not to let it interfere, or get to me, or otherwise influence how I interact with him, but the fact is, it does bother me. I work remotely so I don’t have to see him and am guaranteed some kind of safety through that, but it’s still a lot…on top of an already demanding and stressful job where people have FEELINGS at me all day.
I am starting week 4 and burnt out as fuck. I’m unsure both how to fix it and if I want to spend that energy. My work sets us up for failure before we start every morning – as the story goes with a small, understaffed IT firm, I guess. We’re booked and every day there’s more. They changed how our ticketing system works so it’s even more obvious how utterly impossible it is to keep up with requests and clients and communicating. It makes it hard to feel like there’s any headway, and when a client loses their shit at me, it’s my fault for not calming them well enough.
There is only so much that humans can do, and the expectations here aren’t able to be met by mere mortals. It’s triggering and reminds me of my childhood where I was expected to be capable of more than is humanly possible and reprimanded when I failed regardless of how much I’d gotten done already. My parents set me up to fail in life and my work is setting me up to fail every day before it even starts.
It’s grating and draining and not tenable.
It’s hard and I’m tired and I just want to flip tables and run away.
But I can’t.