I suffer from terrible anxiety, and I drank to mask the symptoms every day. I also went through a bad period after quitting at first where the anxiety was unbearable, but I have to say now (on Day 13) that when I get the anxiety it is nowhere near as bad as it used to be. It's just like a mini version now that I can handle.
I would continue to go to meetings if possible. I have met so many positive people in a short amount of time, and just their presence is calming and reassuring. Get as many phone numbers as you can when you feel a connection with people. I have lived with depression/anxiety for years, but now I'm learning tools to deal with them that don't involve recreational drugs or alcohol.