- Research. While the game may have a tutorial, some mechanism may be hidden or assumed by the devs that you're already familiar with them. DR2 was a sim, so I had to learn a lot of real rally stuff (Manual is better than automatic). I played a few shooters before Apex, but each patch rotates the meta, and you have to keep up to date about how to adjust your play style.

- Watching people play (YouTube, Twitch). Other than the technical stuff and mechanical skills, there are a lot of macro and micro decisions that can only be learned by trial and errors. Or watching people do them and reasoning from first principles on why they do it. You either play a lot, or watch people who are excellent play.

- Critical mindset. Everytime you make a mistake, I make a mental note on the cause (bad decision, lack of mechanical skills, or just bad luck,...) and how I can do better next time. Only the mechanical skill should be instinctual, anything else should be planned and strategized. A loss or a win should be explained by the string of decisions taken since the start of the game.

- Mechanical skills. You can't get around this. You have to splurge the time to actually do the stuff. In a sim, that means I have to relate the pressure on the analog trigger with the amount of acceleration and brake. And how much I have to move the stick to steer by a specific angle, as well as knowing when to shift up and down by ear. In Apex, it means recoil control, tracking, counting bullets mentally while shooting, all the movement stuff, and recognizing the audio cues.

TL;DR. You notice you're doing something wrong, you learn what it is, and you practice the correct way. This was a hard requirement for playing the Soul series.