The first big thing was discovering the gross misrepresentation of quotes in the Creation book. I was an uber-diehard JW, longtime pioneer, foreign lang. group, etc., married to a former Bethelite, elder. The whole schmear. I always had this vague knowledge that we, as JWs, had our "own" timeline of events from "creation" onward which was a source of discomfort, but I was always able to rationalize it. Then I started re-reading the Creation book and actually tracking down the sources. What an eye-opener. I remember just sitting and sobbing my eyes out. But the shock got me to start researching other things and I quickly discovered the UN NGO lie, and that was the end of any kind of allegiance to this stupid religion.
I was mentally out but had to do a long, slow fade to accommodate family. Now, I'm happy to say I'm OUT OUT OUT! And never going back--and never been happier!