I’m sorry you’re having such a rough time. As many others have said, I can relate too. I can share some things that help me but I think every body is different and what helps me might do nothing for you.
I do meditate every morning. I use the Happier app that was originally started by Dan Harris but is now separate from his work. I particularly like the meditations that are geared towards chronic pain and anxiety but there are so many good one to choose from. Joseph Goldstein’s courses are the best.
I exercise regularly even if I don’t feel like it. I do a water fitness class 3/week in the warm water therapy pool and it feels really good and I have found a nice community of friends there.
When I can I like to go for walks in the woods. The softness of a trail path is much kinder to my feet and joints than the pavement is. Time in nature always feels wonderful to me.
Lastly, never quit trying. I am currently going through a trial for a neurostimulator implant and I’m getting a bit of relief.
Hang in there and always reach out when you’re struggling!!