6 to 10 is no problem, man I say go with it and go for it. And you should be proud of your alcoholism, you have attained heights in drinking that other men can only dream of. You are an alcoholic, say it loud say it plowed!
I would not say that I am an addict to the beer, but surely an addict to homebrewing! Although I have been known to have a beer or two.....
Its definitely not healthy to drink that much daily, but do what ever you want to do. If that drinking is causing you to second guess yourself or causing other problems in your life, is it worth? And what is the drinking really doing for you? The only ppl I know that drink that much are pretty depressed(No Offense) and only turn to drinking to feel better.(I know it sounds like a PSA, but I know a lot of alcoholics honestly and they arent happy really). Do what you really want, and I doubt that since you are inquiring about this that you really want to continue what you are doing. Just my opinion. Hope it helps.