Roberto avon,
I was an atheist at 10 who suddenly got an interest in the Bible at 13. At 14 I converted to JWs wholeheartedly believing it was the "Truth" completely. Then, as the years went by, I started getting disillusioned because of the egotistical, pathological organization worship - doctrine did not come up even at my disfellowshipping though I was beginning to wonder.
It was soon after I was disfellowshipped that I became an atheist with a Carl Saganesque awe of the Universe. It wasn't until some years after that I read books like the Gentile Times Reconsidered and Crisis of Conscience. After that I lost all interest in JW issues.