Welcome, PMB. I hope you find the help, information and support you are looking for here. The good news is that you have options. I would suggest researching what is the best cancer treatment for you, based on your own situation. Knowledge is power.
I was 57 when my prostate cancer was diagnosed and after much reading and discussions with my doctor, who supported me as I weighed the options, it boiled down to two: (1) brachytherapy and (2) prostatectomy.
It could have gone either way for me, but what finally pushed me in the direction of surgery were several factors that were important to me. (1)Its its success rate. (2) The fact that my prostate would be removed along with associated structures for pathological examination and I would know the extent of the cancer with some exactness. (3) Lastly, if I required further treatment, radiation could be initiated more effectively than after brachytherapy (seed implants).
It's a personal choice, but if it is an educated decision, you are more likely to make the best decision for you. Take care and hang in there...Tim