Hang in there Paulos...you are doing the HARDEST thing (but giving up the drink is the very best gift you can give yourself)..
I think you are incredibly brave, when that anxiety comes to bug you just try and put it in it's place (easier said than done) and pretend it's just a loser (which it is!)
The withdrawal will not be making this easier...remember that you have come this far already...you are doing an amazing thing, really, hats off to you xxxxm