I think it’s over when you have analyzed how you feel about the church and its teachings, and reach comfort with those new beliefs. For some this could mean a return to full activity, a return to full activity but with boundaries and limitations, semi-activity, complete less activity, or name removal.
It’s over when you reach equilibrium and you are no longer conflicted and bothered by the church, its teachings, and your native beliefs.
I agree that “it’s over” at any of those points and that it’s never really “over” – that flare up may be over (and it might never flare up again).