MY PSA FOR LOCALLY ADVANCED PROTATE CANCER IS DOUBLING EVERY

MY PSA FOR LOCALLY ADVANCED PROTATE CANCER IS DOUBLING EVERY 6/7 MONTHS ON ADT MONOTHERAPY WHICH I HAVE HAD FOR 3YEARS.SHOULD I NOW CONSIDER HAVING RADIOTHERAPY OR IS IT TOO LATE TO HAVE MUCH EFFECT BUT HAS POSSIBLE BAD SIDE EFFECTS?
JA: Have you used any medication for prostate cancer?
Customer: YES LUPRON INJECTIONS EVERY 3 MONTHS
JA: Got it. Have you seen a doctor about prostate cancer?
Customer: YES BEING TREATED BY ST BARTS HOSPITAL IN LONDON BUT I DID TURN DOWN RADIOTHERAPY 3 YEARS AGO.
JA: Thank you so much for your time. Finally, is there anything else in your medical history you think the Doctor should know?
Customer: I SUFFER FROM SOCIAL PHOBIA AND THAT PLAYED A PART IN MY DECISION TO TURN DOWN RADIOTHERAPY BUT IS IT TOO LATE NOW FOR IT TO BE EFFECTIVE GIVEN ALL THE POSSIBILITY OF BAD SIDE EFFECTS.I AM 78 YEARS OLD