Acquiring any knowledge always take time which means we can't just know something overnight, it have to take gradual process before we understand what we are learning. Especially, when we talk of trading it's very wide and there are so many things that follows it which are much more important than even did knowledge itself, firstly, resilience is also important when it comes to trading because it allow you not to give up easily, secondly, Patient is also the key to every success because when it lacking, it actual ruins everything. Patience helps a lot not even in trading but everything that we are all involved in, this will also help in having more time to study very well.
Any knowledge seems a lot but as he said, the time learning can as well depend on the individual, as some can process things easily, while some can have a hard time.
Trading is literally wide and the many things that you mean there that follows it are the things that are outside trading anymore like patience for example. Speaking of patience, I think this is only the same as resilience, so even if you don't have the other but as long as you have one of them, then you are still going to be fine. If we don't have those qualities yet, we can learn them through trading and as you said, we can apply them outside it, amazing isn't it?