There are a number of us here who were brought up as Christians and are now atheist. While this thread was started by wegs, and she explained the transition that she is going through with regard her position on faith, she is not unique in going through such a process, as people shake off what they see as years of indoctrination, of uncritical thought, and embrace the new horizon of thinking for themselves. It may be that she returns to the place she left, but if she does it will be on her own terms, and with a fuller understanding of what the place is.
And I am sure it did not happen "quickly", even if there may appear to have been a tipping point in attitude.
My advice to you, though, is to try not to appear to be a mad man waving around a sharp sword. Intentions are one thing, but the manner in which they're carried out is also important, and that often relies on understanding that people may not see the"dragon" that you do. And they will judge not on what you appear to yourself but on what you appear to them.