Sorry, Dave, to hear that you have joined the "club", but it is quite a large club with 1 in 5 men of 40 having signs of prostate cancer and most men of 60 and over having it. It is generally a slow growing cancer and most men with it die of something else. That said, I note you have indicated that you have been diagnosed with advanced prostate cancer so yours, based on your PSA score and Gleason grading, may be in need of more urgent treatment than some whose scores and grading are quite low.
It would be useful if you detailed your PSA and Gleason scores, along with other related information, so that people can comment based on the actual state of play.
Ivan