>>513463581
My experience from quitting cigarettes was that if you quit for a specific reason (or reasons), you're going to fail. Quitting for a specific reason is a promise to yourself. And promises are only good so long as the conditions that existed at the time you made that promise continue unchanged. It's just human nature to absolve yourself of obligations if you can justify it on the basis that "things change." This is why treaties get broken and wars start too, by the way.
You quit for the same reason you stop hitting yourself on the head with a hammer. It was a bad idea to begin with and there's no rational justification for continuing to do it.