@August252015, thank you very much for your answer.
Yes. I am going to AA meetings and I'm planning on getting a sponsor either today or tomorrow.
I just can't make my family to understand that this is not "a problem of my age (I'm 28 years old). I don't know how to tell them that for me to get sober is more important than anything else. For me, it's important that they understand (because they love me a lot) and I will need their support to overcome this.