Winston Churchill habitually started each day with a glass of scotch before he even got out of bed. From his early 20's, his consumption was legendary, and in addition to the booze, he routinely smoked ten cigars a day. For those of you unfamiliar with the habit, a "Churchill" length cigar takes a good 45 minutes to burn, if you're really dragging on it, so it stands to reason that the man spent nearly every waking moment with a cigar in his mouth.
Churchill had a 62-year political career, and was easily the most illustrious and influential British statesman of the 20th century. He authored over a dozen books and countless articles for periodicals, and was awarded the Nobel Prize for Literature.
I don't think he attended a single Alcoholics Anonymous meeting. Despite his seemingly unhealthy habits, he lived to the age of 90, and remains a legend.
Churchill didn't identify as an addict. He didn't use it as an excuse for any lack of achievement. He didn't bother trying to quit. In those days, the only men who did were the ones who couldn't hold their liquor.
Nobody cares if you're drunk or sober. Your output is all that matters. Make that your identity, and the rest will take care of itself.