I hear what you are saying. You are 82 years old, that is quite a long life.
My brother's wife got cancer and they went through all the chemo therapy etc. She suffered intensely because of the medical treatments, and she died anyway, after 18 months.

See, when the docs do all these treatments on you, it may or may not increase your life span, or make you feel better.
But it will definitely improve the doc's checking account.

My brother has said that if gets cancer he will not take chemo therapy, and I am of the same belief.