FYI, I have been through this too! What do I have to say? Hmm! Lots! My best advice - stay being your own person - don't just follow others peoples' advice blindly - and that applies to doctors, surgeons etc.
My grandfather had Prostate Cancer but he survived it. Now he's dead due neglect at the resting home. On his side of the family I take after the mental illness part but that's another story which is why he suffered a lot when he was old when nobody understood him or was it just part of being old? I don't know, we were to ignorant then, but he was a nice man when he was young as I been told but my grandmother didn't seem to care that much about him that much as old man and I'm not sure when he was a youth but he was like a saint, old or not old but now he's in good hands wherever he is because he doesn't have to suffer anymore. May he rest in peace, grandpa. Other than that, we're all good people and we all have some kind of past or evil in all of us. It's true. Believe or not believe.