Roll the dice, because you never know where you'll be when the Iranian-Russian-Chinese-NoKorean nukes hit.
Well, I'm 56 so I seriously doubt that I'll make it 55 more years, but I think you're being just a tad pessimistic.
I think back to our grandparents who lived through WWII, with the entire world at war and 60 million people, 3% of the total population of the earth, were killed, and think that what is going on today, while not to be dismissed, was nothing like that.
Then I go back to our great grandparents who lived through WWI, where 17 million died, I and think the same thing.
Then I go back through history and look at the Black Death in Europe, where by some estimations up to 60% of the total population of Europe died, and yet we as a species recovered from that.
Yes, nuclear war is a very real possibility, and even more so with our government selling us out to the Iranians, but I have to believe that in the big picture, we have faced much darker times in the past than we do today.