I have feelings like yours all the time about life in general. When I do, I think about the term "equanimity" in Buddhism. It refers to the ability to see without being caught by what we see. or the ease that comes from seeing the bigger picture. Another part of it is to find balance through inner strength (which you have incredible amounts of). MR is not easy. Life is not easy. There will be bouts of heavy rain and you will feel like you can't go on. But remember you have been through storm before, and here you are, still standing.