It's so sad to know that you are going to die soon. It's even worse when you are 20 years younger than the average life expectancy. If his acting job makes him happy, I hope that he can continue that until the bitter end. I watched an uncle go through a 5 year battle with colon cancer. They removed the cancer and it came back nearly 5 years later. We had a family reunion to say good bye a few months before he passed away. He had lost so much weight and looked so sick and weak that it was frightening. At the very end he was begging god to take him to heaven because it was just too much suffering to bear.
I hope that when my time runs out that I go quick. As my dad once said, "There's something to be said for a good old heart attack that takes you out quickly".