To have a healthy attitude, I think we must first have a good living environment, especially the family! A child who grows up in warmth and happiness, is encouraged and recognized, and a child who is full of quarrels, rejection, isolation and denial from childhood, their cognition will really differ a lot! I think it's social circles. With people in the sunshine, no matter how bad they are, they will slowly get out of the haze. On the contrary, if you stay with people with low self-esteem and too much negative energy for a long time, the body and mind of sunshine will gradually disappear with time.