Just as a skillful soccer player knows when to run with the ball and when just to hold the ball, a skillful trader should know that there is no need to always trade, and the need to know when to trade, and when to just observe the market. knowing that can also help to improve the profit they make by reducing the losses they can make by trading at wrong times.
Another time to avoid trading is during holidays.
That is a good point, traders are used to take action whenever they see something happening on the market, so eventually this becomes their default reaction to anything, but this is a mistake, there are market conditions that should not be traded and the best thing you can do is to simply go out and do something you enjoy instead of staring at your screen, however for a trader this is something very difficult to do, so they will try to trade during those difficult market conditions and lose a lot of money they could have saved themselves by literally doing nothing.
That certainly covers a lot of ground in terms of trading. It does not imply that only one study has been done on it. Studying something you wish to know before is different. You'll put everything you've learned into practice. In other words, you haven't put what you've learned into practice.
What's more beneficial? Even though they have not yet studied what you have studied, others are already using what you have learned to their advantage. Because of this, folks who have studied or are studying trading are frequently the ones who eventually despise or give up. because they did not anticipate that trading would be difficult to comprehend and put into practice. No such passion exists.