Hi. I didn't use AVRT to quit drinking, but I did for smoking. I always felt this was the tougher of the 2 addictions for me too.
There's a thread somewhere on this forum about how I got started, and then I sort of gate-crashed another thread too.
One of the big things I was worried about was that I would pick up a drink again too, like how would I ever cope without the both of them? All those thoughts are total AV bs.
From the day I made my big plan, I haven't smoked and its been couple of months now. More importantly, for the first time ever, I'm totally confident I won't do so again.
Go for it!