Do you know what your Gleason score is? That tells you how aggressive your cancer is and is a very important number.
Dying from prostate cancer is extremely painful, you don’t want to go there. My father died from it. He had his teeth ground down and crowned without Novocaine, came home for dinner every night had no problem eating. The pain from prostate cancer was unbearable for him.
I am 76 and have had surgery and years later radiation followed by seven years of ADT. I had no cancer symptoms at all for the 14 years I’ve been on treatment. ADT did give me hot flashes and some brain fog, but has allowed me to live for all this time.
For the least amount of disturbance in your life, radiation really works well and seldom causes urinary problems, at least for a few years. See a radiation oncologist to see if you are a good prospect. My brother is your age and had that done last year, and has no problems from it.
Tulsa pro may work for you. There are requirements. It is not covered by insurance and cost about $30,000. SBRT radiation is used commonly it works quite well for people with as few cores as you have cancer in. Cyberknife and Meridian Technology SBRT gives you the lowest chance of having nearby tissue affected. Look into it. They are covered by insurance.
Don’t just let it go you will regret it, you could live well into your 80s if treated.
I will second what @jeffmarc wrote. I watched three grandparents, my father, and my childhood friend die from different cancers. Even with modern palliative care, it is a brutal, drawn-out way to leave this earth, and I wouldn't recommend that anyone choose it lightly if there's another alternative (though I respect that each person has to decide for themself).