Make sure your mental operating system is robust. These days, it appears there is an enormous amount of people who unknowingly use logical biases and fallacies, rendering their arguments useless. Don't be like that.

Books Mentioned:

The Great Mental Models Volume 1: General Thinking Concepts by Shane Parrish (Farnam Street)

The Great Mental Models Volume 2: Physics, Chemistry and Biology by Shane Parrish (Farnam Street)

Super Thinking by Lauren McCann

The Psychology of Judgment and Decision Making by Scott Plous

A Rulebook for Arguments by Anthony Weston

How to Lie With Statistics by Darrell Huff