It's difficult to defeat the overwhelming feeling of "There is no future (Or at least not a good one), so what's the point?". I feel like even if I live to 100 we're not going to be anywhere close to a Star Trek utopia, but more smack dab in the middle of a Dark Age.
Do you see yourself as a Designated Individual Recipient of the trends that the world/history offers you, someone whose meaning in life is contingent on the consumption of some society-wide (read: greater power or Generalized Other) achievement?
Or do you have something you believe can be done with your own life that fits in with moving the world in the direction of "winning a future" or making things "better"?
We're in a position of uncertainty. But we can take a stance with our lives that is both intrinsically gratifying and revolutionary in the bigger picture.