Having gone through cancer myself and having relatives who have gone through it, the best advice I can give is to live. Focus on the moment and live.
If you are in an oncology waiting room, you'll understand what I mean. The people who look as if they are zombies are the ones who are talking about death and regrets and the like. The patients who look healthier are the ones talking about their garden and how the kids are coming to visit next week and ooh so many yard sales to hit and so on.
Like the old saying, "Free your mind, and your ass will follow." Focus on living, and your body will follow.
That's exactly what I plan to do, Java.