Though one can't be certain until you have all the results, it is very likely you have prostate cancer and that it is spread beyond the prostate. The usual treatment at that stage is Hormone Therapy. It doesn't cure or kill the cancer, but it does make it dormant, and whilst it is dormant no matter how far it has spread, it doesn't do anymore harm.
If you do end up on HT the first question is can you put up with the side effects? for most people the answer is, yes. Lack of libido is probably the worst side effect.
The second question is how long will the treatment be effective? A bit of a how long is a piece of string question. I think five years is probably a reasonable average, at least two years is a reasonable minimum (occasionally it doesn't work at all though). The maximum has occasionally been, long enough to die of something else, I think 15 years would be a reasonable statement of the maximum it will last.
So there is certainly hope, perhaps not of living a very very long life, but definitely getting to the end of the weekend.