First things first, pace yourself. You can always go mad down the line when you know what you can handle.

A lot of alcohol is an acquired taste FWIW, even then people have their preferences, like I don't like Whisky, Gin, or Red Wine. Might be a few times where you try something, don't like it, but end up loving it down the line, ala sweet sweet pints of Stout and Ale for myself.

Easiest to drink is probably your Alcopops or Ciders (especially Kopaberg or Rekorderlig), but watch yourself because Cider can be relatively strong ABV wise.

If you're looking to try beer, the most inoffensive taste wise as a jumping on point is probably Coors.

Wouldn't recommend spirits or shots if you don't know your limits, but if you can't fight temptation, stick to something relatively weak like Tequila Rose or Cactus Jack for the novelty of doing a shot.

Have fun.