Well, if you've given up hope on FTL, at least don't give up hope on your planet. You see many ways in which humanity will prevent itself from reaching the stars. Can you see ways that you can either: slow humanity's descent, or prevent our descent?

I too wonder if we're going to make it much further, before a scarcity of resources draws us back to the stone age. However, I'm optimistic that by pushing both advancement and conservation, we can do it.

__________________
Live long enough to see Space!

We can get to space as a species. The above link is information about life-extension (living longer) so that you can personally see a space-based civilization.

The MPrize (a prize to encourage life extension research now contains over 3 million dollars.