Welcome!
I'm so glad you've found SR, it's a place where there are many who understand exactly how you're feeling. Most of us know and love or have loved people who are fabulous when sober and change radically when drinking.
I urge you to read, read, read all you can about this disease. There are powerposts and stickies at the top of this page. LOTS of great books are available. Alanon meetings are happening every day in your city, they're a great place to learn new skills that can be applied to many facets of life.
Again, welcome! I'm looking forward to getting to know you.