Main medical risk: Death
Action to take: Make a will.
Sorry about your cancer problems.
I was diagnosed with prostate cancer about 20 years ago aged 55...PSA >40.
Luckily I was living in a European 'nanny state' which paid probably more than a million euros to cure me. I would have been left to die in the Good Ol USA.
Please PM me if you're interested in the details of my treatment (no operation).
I guess your future health lies in the hands of your health insurance company.
Sincere best wishes.