Instead of making it about committing to sobriety why don't you turn it around to be creating a better future for yourself?
If you can sober up for a while you will see how miserable the addiction has been making you. Go to AA if that is what it takes. I went to a meeting last week and everyone was nice. Alcohol makes you depressed, I think you will be happier in the long run without it!
good luck
-z