So, the first thing you need to know about alcohol is it's an intoxicating drug. It is a depressant, its short-term effects include reduced inhibitions which in the moment can feel like increased confidence, and overall reduction in physical motor skills, plus a mild euphoria. Also makes your face feel slightly numb. That's most of alcohol's selling point.

Alcohol on its own is rather unpleasant to have in your face. A lot of cocktail culture sprung up around hiding alcohol with other flavorings so they're in any way pleasant to swallow.

You might try something like whiskey and coke, I'd specifically go with American or Canadian whiskies here; scotch doesn't really bring the right flavors for this. There's a reason Jack Daniels or Crown Royal are stereotypes. Vodka can also be a way in; it doesn't bring a lot of flavor of its own so adding it to fruit juices can get you used to booze within familiar flavor profiles. Don't worry about sticking to posted recipes, drop a tablespoon of vodka into a tall glass of orange juice and see what it does, then start upping the ratio.

Get used to that, you may then start exploring cocktails, getting into wine or beer, or neat spirits.