In addition to AA and NA, I have also taken various medications for depression and mania, and have been through all sorts of talk therapy. I have not taken any of those medications for over a decade, I no longer go to meetings or therapy, and, among other things, I have found that I can drink in moderation. I drink very occasionally, maybe once every few months, at social occasions.
I cannot claim that anyone who becomes a christian would have the same experience. I do not know that. And I am aware of weaknesses in those areas that used to cause me so much trouble, but I can also say that they are not debilitating the way they were previously.
When I left AA and NA, I went around to all my old meetings and told my friends there why they would not see me any more. There were some very interesting conversations, to say the least. I wish them no ill will, but as I said above, I would not recommend those groups to someone in trouble. I wouldn't say not to go there, but I would not send them there as a first option.
I don't really have any pat advice to offer anyone struggling as I did, beyond, Don't give up. Yes, it's painful, but don't give up looking for solutions. (And as someone else said here, taper taper taper if you're trying to detox.)