I don't think chess players share much of anything in common other than playing chess. All walks of life play chess and many people play chess for different reasons.
As for my own personality, you can read about me in my chess.com profile (or my YouTube channel, or my chess.com blogs etc.).
Hello, I am making a study about chess players. How would you decribe your personality ? Do you think all chess players share a common personality trait ? Thank you !