Welcome, thanks for sharing your very interesting story. I think most people reach a point where they either (consciously or unconsciously) choose to ignore the gaping holes in the Watchtower narrative or choose start looking at things objectively. It's like the picture that looks like an old woman or a young girl depending on how you look at it, once you start seeing the ugly you can't go back to seeing the pretty.
It's seems it's often the more zealous and idealistic that eventually become disillusioned and loose faith.
