You are definitely beating the odds. When your Gleason ranges from eight through 10 you are considered a Gleason 10, which is really aggressive.

Did you change your diet and become a vegetarian or a vegan? That can do it for some people that have Gleason 10 and stage 4. Stopping eating red meat can help a lot too.

That agent orange is a real pain, I know a number of ex-military that had the same issue.