- Learn to edit well, it's how to write well. Nothing opens doors like clear writing. For sources of quality edited writing, read The Economist, Quanta, and the first novels by authors who wrote 20th century literary fiction. Their later ones had less editing. - Negotiation + game theory. Learn the traditional methods, and then forget everything you know about them because the real world has changed and broken the as…
> - Learn confidence and humility by mastering a common physical skill like an instrument, singing, or performing monologues, etc. Not stupid tricks, but something where other people are objectively way better than you are and plan to be embarrassingly bad at it for at least a decade. I would personally recommend martial arts for this. You get a useful skill (eventually), there is no skill ceiling, and there are alwa…
Even if you're just more into the kinesthetic work, dance will pay more dividends and be more useful for basically the same reasons. Breaking is especially fundamental and nearly always works.
Again, do whatever works for you. But martial arts are really very rarely a useful thing to have learned. (And to be fair, performing monologues per the OP's suggestion is about as un-useful as martial arts relative to singing and dancing.)