Okay, let's take a breath here.
Tomorrow do not drink. If anyone asks you if you want a glass of wine (you know they will, so be ready...) say, "Oh, no thanks. Do you have some cold water/juice/soda/lemonade/tea/whatever," or even, "No thanks, I'm fine."
You've learned a new lesson today.
Mera, it is one day. Just start again. Keep starting again until you get it. I know you've struggled, but it doesn't have to be, "Go to rehab in the U.S." OR "Be a drunk in Italy."
Come on, woman. You can do this. You're not a failure. Start again tomorrow.