Hi Rose,
20 days is really great. Did you know it takes 21 days to reprogram the brain? You want (or THINK you want) to drink Miller lite because you are alcoholic. Thats what you have done before now. You have built in neuronal pathways in your brain chemistry that respond to Miller Lite and trigger the "pleasure" response in your body.
Recovery is about not continuing to respond in the same old way.
Keep not drinking, and those old pathways get weaker. Soon, the obession may lift.
The reason AA works for me is because it offers me reminders on all levels, especially spiritually, of how to accept that I am alcoholic and what the solution to this is. For me, the solution has been to not drink, become open and willing to change, and to ask for help.
You, Rose, are doing all those things too. I am 9 months sober and am now just addressing the food issues. Don't hate yourself. Accept yourself as we do.
Big hugs!!!!