You seem to be doing well in the face of such a dreadful disease. May I make a suggestion?

Have a look at this video of Michael Neill discussing something known as The 3 Principles. It's a way of understanding life that can be - to put it mildly - transformational.

When you 'get it', it completely changes how you see thought and emotion - invaluable to someone in your position. Do check it out when you have the time.
Best wsihes.