Is 1 drink a night the best way to build tolerance?

Hello, everyone.

I (22M) have dabbled in alcohol since I became an adult. Recently, I’ve been drinking more often – going out once a month to once a week – and whilst this post isn’t about my lifestyle choices, it’s more about wondering if the title is a good way to build tolerance. I’m a spirit drinker, recently I’ve been mixing Captain Morgan rum with cordial. Is this the best way for me to get used to drinking more and at the same time, discover new mixes?