I've also found that the more I think about it the worse it gets. I am always thinking "I must not pick after dinner", or "tonight I'm going to try and not pick". What I know, and am not yet able to put into practice, is that you can't think about what you don't want to think about without thinking about it! Meaning, that when you focus on things you don't want, you are actually thinking about that thing, and you're therefore more likely to do it. (Like the other day I was out running and the ground was wet. I though "gosh I hope I don't slip"... I was so focussed on not slipping that I turned a corner very carefully, scared I would slip, but took the corner to wide and ended up in the grass!)
So... we should be thinking about what we do want, like how good we will feel in the morning after not binging the night before, not on what we don't want... like making ourselves sick, feeling guilty, gaining weight, etc.
Now, if anyone who understands what I have just written has any advice on how to actually DO this, please let me know