Quietly tell you a folk prescription: light hammer every day (light and heavy will kill people, haha! ) Fifty times in the left and right testicles will help promote the secretion of androgen. Your condition may be related to insufficient androgen secretion. The increase of androgen helps to improve your courage, but this is not the main problem.

Coupled with fewer people in contact, there is no "confidence." There are many people in contact, and naturally they will not be reserved. I suggest watching Kim's social etiquette videos or CDs. It's not bad. What impresses me most is that when people say hello to you, you have to reciprocate. Who's afraid of who? Take the initiative to say hello and you will take the initiative.

As for environmental pollution, it is unlikely to affect women's character. From a biological point of view, places with bad environment will only increase the birth rate of females. I've never heard of academic reports leading to female character in this field.

I hope my answer can help you.