You are not alone! I have been dealing with burnout since the pandemic began. For me it was the inability to focus on the simplest tasks that made me realize I could no longer ignore the problem. Therapy has helped a lot.
I second this. I was sold on the Embody and went to try it and I thought it wasn't for me almost as soon as I sat on it. I ended up getting a Cosm which surprise me personally, because I sort of liked all the knobs in all the other chairs, but I really liked how it adjusted to my body.
Try all the chairs with an open mind and listen to your body
I was trying chairs at Design Within Reach recently and I couldn't agree more. I went in expecting to like the Embody best, but the Cosm just really seemed to click with me. It's comfortable without having to adjust anything