I feel for you man. I may be facing the same thing.

Big piece of advice, stay away from grocery stores and shopping in general. I know it's mentally hard to be locked in the house, but death by pneumonia is really unpleasant.

I had a friend who was doing chemo. He went late one night to get some groceries without a N95 mask on. He got covid, the flu and a third virus I don't remember. Dead within a week. Nothing they could do.