I am having a long recovery from hip fracture. I am almost 5 months in with leg spasms and other stuff. I have gone through fear, frustration, etc as before that I was walking miles per day, hiking, yoga and more.
Like you I have a cat 16 yrs old that was peeing in house so we thought UTI, found out it's her kidneys and old age.
My hubby has a lot of pain from arthritis in his neck, dental issues, we have no insurance for the dental part.
So I get all you are saying. The things I use to do walk, hike, yoga to calm me down I can't do so you do what you can. I float and walk in the pool, I take daily long baths, read a lot, and taking a zoom class twice a week on mindfulness.
As far as your friend, my older daughter who is so loving and kind, got talked into being a republican 5 yrs ago by her boyfriend and others at work. In order to stay close we don't talk about it but it's so hard to see her change over the years. She never was prejudice against minorities I didn't raise them that way but I hear her make little comments about different races now. Last week she eloped with boyfriend because she knew no one in family liked the maga dude. So I feel your pain.
Find something, anything you enjoy and do that. Try to soothe your soul that is hurting.