I have also recently had to accept that I will never be able to be a 'normal' drinker.
I just can't be satisfied with a couple, I always have to drink more and like you I am a binge drinker.
The biggest obstacle for me is time. As time passes, I start to forget all the idiotic things that I did when drunk and start telling myself that this time I can handle it and drink in moderation.
Never happens.
Good luck with your abstinence and I hope I can do the same.