You have asked a question many of us ponder. I agree with others here that there are no known answers. We are each different in so many ways, this will always be true.
It's true that I, among a few others, have drawn a long straw. I am blessed and try to remember that each day but while I have worked hard at research and making choices that I hoped would work for me in the end I really do believe I am just one of the lucky ones.
What do I think may help? Here's a few:
Surgery - The one piece of data we do have is that our prognosis is best for those of us lucky enough to have this option, and to find a surgeon who has CC experience and is willing to take a chance on us. I was one of the lucky ones.
Attitude - I have a strong desire to live. There is so much life in me.
Love - Loving and being loved. I have wonderful friends and family and the love I have received has been a gift of my cancer. It was always there of course.......but I never let myself see it so clearly.
Faith - This is different for each of us. Whatever we believe what for me matters most is that we live our belief, our faith. Jeff is a wonderful example of this. Mine is much less defined but strong within me.
Willingness to accept that death is part of life. - I'm a gardner and it's was in the garden that I was unable to avoid recognizing the circle of life and death. This is a hard one to talk about here with so many of us facing death in such real and intimate ways. I've been close enough to my own that I feel I can write about my experience, but it is only mine. I love life but while I fear pain and hospitalization I do not fear dying.
Process - I've chosen a path with this disease that seemed right for me for whatever reasons. You can read my posts for most of the details but it involves diet, alternative medicines not easily available, chinese medicine, chemo, some drugs to help liver health, and some practices (visualization, some meditation when I can focus, Qi Gong, Yoga, exercise)
The only thing I think is really relevant here is that this is what I choose and it seems to be working for me. Others make different choices that sometimes work and sometimes don't.
In the end I have so far drawn a long straw. It may be that simple.
This site is the best source of information and hope of anywhere I know of on the planet. We are a special community united by never wanting to be here yet knowing we are understood and cared about when we get here.
My love and hope for all of you.