Do you want to quit? If so, than try going cold turkey for a month and see how that makes you feel. If you can't remove beer from your life for just one month then you've got some thinking to do. It's not the amount of alcohol you drink but what it's doing to/for you. There's something there that's eating at you telling you that there's something wrong. Also, you're doing some rationalizing. Drinking to sleep and breaking it down by the numbers. I personally would try the abstinence test and see if i could be comfortable in my own skin for a month before i decided whether or not i could ever drink again.