John Cheese, one of the senior writers at Cracked.com, is a recovering alcoholic and though Cracked is a comedy site, he has written some fantastic articles with practical insight to your very problem. The links are below:
http://www.cracked.com/article_18824_5-things-nobody-tells-you-about-quitting-drinking.html
http://www.cracked.com/blog/7-things-you-dont-realize-about-addiction-until-you-quit/
and
http://www.cracked.com/blog/5-things-that-have-to-happen-before-you-fix-your-crappy-life/
You are doing the right thing by being in system. Relapses are part of the process. Do not forget to forgive yourself, and realize that it took time to become an alcoholic and it will take more time and effort to overcome it as the years roll by. Don't lose heart.
You deserve the same chance at pursuing your happiness as anyone else. Never let anyone or anything stifle your will to live happy. Most importantly, never forget that you matter, and you are not alone.