My daughter's 16 so forgive me for sounding like a dad...
Hi Ally,
My wife is an alcoholic, and she was drunk for most of our daughter's childhood. While my daughter doesn't share your anxiety about other's drinking, for a long time I did.
I'll strongly suggest to you that you start attending some Alateen meetings, at least six if you can. That said, often Alateen meetings are hard to find and if that's the case where you live that's ok. You can go to Alanon meetings instead. They are likely to still help you.
Keep an open mind because most of the people there, while older than you, will have shared experiences with you anyway. Many of them will be adult children of alcoholics, and all of they will have alcoholics in their lives either past or present.
Lastly, try at least six meetings before you decide if it's for you.
Take care Ally, and don't feel bad you have this issue. It is what it is, it's a problem for you, and you are seeking solutions. Good on you. That's all that matters.
Cyranoak