The hard part is to realize that you belong to the group that cannot be on the middle ground. It took me at least 4 years to fully realize that. It is everything or nothing. Trying to keep a balance between the two extremes takes so much effort, leaves a lot of room for failure and requires to adapt patterns. The black-and-white approach is simple and effective. It does not require you to think a lot and there is not much room for error.

Thinking clearly about what amount of alcohol is appropriate for you while you are actively incapacitating yourself is just very hard for some people. While I appreciate relativity and nuances it's just not worth it in this case.