Go to your doctor. In that closed room, safe from exposure, lay it all out. "I'm an alcoholic, I drink mouthwash for a buzz, I'm broke, and I'm desperate for help."
I was in similar circumstance. My doctor very calmly said, "Here's what I can do." We're doing it. He's charging me what I can afford and sending my prescriptions to the cheapest place he can find.
You have a medical condition. If you go to a doctor they will treat it.