"The question is: Will you study logic in order to learn more about this tool [logic] you have been using for years and will continue to use? Or, will you ignore the study of logic and continue to use it anyhow? The choice is yours. So are the consequences. (That is supposed to sound threatening.)"
What heuristics, techniques, and questions do you use to untangle or cut through complexity?
I've found that studying logical fallacies naturally helps me to detect them more readily, but given the complexity of the world, I often wonder what it would look / feel like to reach a level where one's reasoning and speech is 100% consistent and correct (given the perceived facts).
1. Learn to think. Stop regurgitating and repeating someone else's thought but sit and think very hard about things. There is no critical thought, there just is original thought or repeated ideas that are someone else's. Form ideas of your own.
2. Learn not to think. In the "meditation"/non-duality/Zen kind of sense. Thinking is giving names to things, which constrains you to apply names you already know to novel phenomenons, thus missing the forest for the trees. So learn not to think, but to observe reality as it is, unfiltered by your conditioning, education, biases, fallacies. Maybe then you'll notice what you always believed was a pipe, or what you were told is a pipe, truly isn't.
This means reading, mostly. And I'd add that sometimes the gold can come from very unlikely places. So read widely.
I think the closer you get to that, combined with doing what you agree is right, translates to happiness.