Advice on how much to drink.

I’ve never really drank before. Only a few times. Once when I experimented a little too much with some rum… the next morning wasn’t fun.

Recently someone got me onto Disaronno. It tastes great (any suggestions of something similar or a branch off that I can try would be great, lol). It’s calming and quite enjoyable. However, I wanna drink safely. I’ve seen stuff online about 14 units a week, and 3 ounces at 28% is about 2.5 units. Is this advice applicable? Is there another metric I should limit myself to? Is 750ml of this stuff a month be too much?

I’ve got a lot of questions and since I’m relatively inexperienced, I don’t wanna just assume anything without research.

PS: sorry if this doesn’t belong here. Feel free to take the post down if it’s doesn’t. And thank you to anyone who responds!!!!