I suppose it's just a matter of learning to recognise it as the beast, it takes practice. I always think my AV is sneaky because it will slip little thoughts in there which aren't obvious, like instead of it just screaming 'I want a drink' it will say stuff like 'see how you feel in a few months', like if I'm not feeling better then I should drink again.
What is it you're finding hard tzivia? I found resisting the urge to drink relatively easy using AVRT but then other stuff wasn't as easy, like feeling generally rubbish...
Well done on day 16
x