I lost faith in the God of Jehovah's Witnesses when I left them, but still thought there was a possibility that some kind of God did exist. I was content to leave it like that for about eight years at which point I found JWN. After reading many posts by atheists and others I stopped believing in him or her altogether.
For a while it seemed a bit of a loss, I envied those who still believed, as it seemed to help them get through life somehow, even if God was only in their imagination. I missed spirituality and even attended a liberal church for a few months in hopes of finding it there. Gradually I came to prefer the uncomfortable truth rather than the comfortable lie. Now I feel I have gained back my spirituality, but a better spirituality based on truth not fantasy. I have hope for the future and am enjoying my life very much. For me spirituality is in every moment of connection between two souls, in every beautiful sunset, in every thing I create, in every great meal I cook. I don't need anything more than that.