my story any advice appreciated do not have a clue

65,had not seen dr. in 50 years. blood in urine doc says stage 4 metastasized into bone. get a call kaiser says 3 years to live good luck
psa 885 got lupron and 6 chemo injections
well chemo worked quite well dr. added 5 for a total of 11. no nausea whatsoever chesseburger after injection
i get lupron every 3 months and blood test
psa .2,.4,.3, .8(doc say cancer back) 1.3 (doc say aggressive)
she puts me on zitgya. i read live expendency zitgya 3 years.
well blood test yesterday less than .1.

is this good news or very good news? i take a slew of supplement and exercise more than a little and feel fine oh doc also prescribed predizone
i thought predizone was for nausea which i don't have but doc say good for some gland so started taking