Have you talked to your Dr about the anxiety? Shortly after my first bout with Covid I developed severe anxiety in addition to my insomnia. My Dr prescribed Sertraline (Zoloft) at 25mg, increased to 50mg. It takes a couple weeks to work, but it helped a lot. After about 3 months, I tapered off to see if my anxiety was better w/o the meds and it was. I'm no longer taking the meds, but they helped me when my anxiety was affecting my life.