That depends on the type of alcohol you drink and on its quality. For example,
the famous long-livers of Caucasus who live up to 168 years and have almost no medicine in their distant mountains. They eat a lot of meat (e.g.
shashlik) and drink wine instead of water from a very-very young age.
BTW:
Heavy Drinkers Outlive Nondrinkers, Study Finds - TIME