I was diagnosed with metastatic prostate cancer at age 61. There is no cure, but there is treatment to hopefully delay the end for several more years and maybe long enough for the cure.
My CPA son and I concluded I’d have to live to 79 to make it worthwhile waiting until I was 65. That’s not going to happen, plus I have use of the money for three years.
I think you have a good approach given the circumstances.
Find joy in each and every day. Find some quality to observe and appreciate, even when it seems that ‘nothing much’ is going on. It’s the same advice most of us should be taking anyway. Best of luck to you.
Praying for you. May a full healing miracle come to you.