Welcome to SR!
Drinking a pint or more a day of vodka makes me shudder. My alcoholism progressed rapidly when vodka became part of the ritual. Prior to that, it was mostly beer.
Alcoholism is progressive. A pint of vodka every night at 30 will likely lead to a fifth a day by 35 (or sooner) with your drinking starting earlier so you can get your daily bottle in. Then the hangovers become tougher so a nip in the morning to steady yourself starts to sound like a good idea.