I don't speak for all atheists - only myself.
Im just wondering because it seems like you have no hope. Please set me straight.
I used to have the hope that I'd live forever in a paradise on earth. As a non-believer I have replaced that wonderful hope with the reality that I have only a limited time left, perhaps another 40 or 50 years if I'm careful. After that - nothing.
I was depressed when I lost my faith and the future that went with it but reality, as harsh as it might be at times, is still infinately preferable to the deluded nonsense of faith. Belief robbed me of life in the the real world for the first half of my existence. it won't take what is left.
Don't waste what you have investing for the 'life that is to come'. This life really is all there is - and it's not all bad.