The median survival for me is 5 years! I have just had a stem cell transplant (well my own cells) and it wss hard - if I say hard then it really was and I feel a lot of empathy for those who are not as fit and determined as me. What I am doing is pretty much as before - being with and part of my family and doing a lot of endurance exercise (my other half describes me as a ultramarathon runner - I dont) cycling, running and rowing average 8+ hours a week even while having chemo. As far as I am concerned this high level of exercise is by far the most effective medicine, and also shows everyone that this is a life challenge to be met rather than a disaster. I also get some satisfaction from finding out that people such as one of the doctors taking care of me have now taken up running. ps - if you start doing exercise be carful and get good advice - I have known too many people dying suddenly of male exercise bravado.
I imagine I would act pretty typically. Quit work. Travel the world and see what I want to see. Spend time at leisure, thinking about the world and my place in it. Develop some kind of spirituality. Take a bunch of psychedelic drugs. Spend my days with family and friends.