Personally, I am still confused about creo thoughts, but I mainly think it boils down to the mechanism cognitive dissonance. But other than that I will give a reference to a youtube channel of a personer, whom was a former Christian, but now he is an atheist. He has maked very insightful videos about losing his faith:
https://www.youtube.com/user/evid3nc3?blend=1&ob=4He is not a creationist and can actual accept a good argument, however, it probably help to understand creationists too.