I don't believe I've had a true turning point, or maybe it just hasn't come yet? Either way, I've had a few little ones. One was when after believing for years that if one person turn aside with satan after he was released after 1000 years we'd all be destroyed. I used to pray every night about it almost crying because it upset me so much. The second one would definetly be when I first really understood Jesus' sacrfice. A lot of information I had in my head fell into place and everything started to make sense and I really started to appreciate the truth then
Yeah, it doesn't have to be one big revelation, a lot of little ones can nudge you toward making the truth your own too..