New to group and to admitted addiction

Hello, I'm new here and new to admitted addiction to alcohol.  I have been a food addict all my life and 2 years ago had a gastric bypass which was hugely successful as I am literally 1/2 myself after losing 140+ pounds.  Last October my life took a huge turn for the worst when I began drinking uncontrollably.  I started with 1 glass of wine after my kids went to bed.  That one glass became 2 and then 3.  I was soon consuming an entire (large) bottle a night.  I began blacking out ~ I would wake up in the morning and not remember past 8pm.  I got myself back to 1 glass a night but recently have been consuming enough to have those black-outs again ~ most recently last night.  I start drinking when I put my kids to bed.  Last night my husband came home, I was in bed and my 4 year old was playing in the bathroom with his razor. 

I've worked through addiction before but I have no idea how to even begin dealing with this one.  I am an adult child of an alcoholic and remember all too well what it was like growing up with an alcoholic father.  Why am I doing this to my children??  I know I need to do something but what and I don't seem to have the strenght to not drink.  I find it mind-numbing and soothing to my overly stressfull life.