Now that you know that you grew up in this family, you should go out and exercise yourself decisively. Although these people are full of confusion and uncertainty about social life and future, one day they will have to earn their own living. If you are an adult, you can't always stay with your parents and always travel.
We should study again in this big class of society. Introversion is not terrible, cowardice is not terrible, what is terrible is that you can't learn new things. Study hard survival skills, learn how to communicate with others, and always get rid of inferiority and cowardice.