Severe anxiety as a result of a COVID diagnosis

I am a 77-year-old woman with a full life who was diagnoses with COVID several weeks ago. The anxiety has become overwhelming to the extent that I am unable to do much and have been in the house most of this time. I was already on Zoloft and Buspar and my PCP increased the doses and told me to continue to rest and hydrate and return in September. I also have a Psychiatry referral for September. I am not sure how to get through my days:-(