I have also faced cancer many times (4+) in the past 11 years along with the death of a spouse, covid pneumonia, selling a home, building a new one, and moving to a new state. I sought support from a psychologist who offered Accelerated Resolution Therapy (ART) and it proved to be quite helpful as it helps you look at stress differently. You may want to check out professionals who offer it in your area.
We all have stories that run silently in our heads. While we can not wish away the many cancers and the impacts of each we can change how we think about challenges and look for things in our everyday lives that are positive vs focusing on the negative reminders.
Not easy to be sure but sometimes just taking a walk, sitting by a window, or listening to music can provide a few moments of mental relief. Over time those moments can become minutes and then hours. Hang in there and know you are not alone we are all here to support each other. Dennis(Blood-Cancer.com TEAM)