What are the basic qualities of an excellent chess player?

The quality that a good chess player should have is that when you play a lot of chess with many people without regrets, you will know. Chess can sometimes make you feel desperate. It doesn't matter whether you go this way or that way. Maybe there are a lot of people watching you play chess at this time. Your situation is very difficult, but it is precisely at this time that you should still have a clear mind and strict logic, instead of giving up on yourself, not going or being afraid to think about how to deal with this chess game. In short, masters have experienced many such situations, and sometimes they become masters after many people around them look at them and even make you feel ashamed.