At the age of 20, it's not too late to learn dance. In Tianjin, the Youth Palace has adult dance training classes. Body ballet, national, classical, jazz and other dances are available. You can go and have a look. Many people like dancing since childhood. When they grow up, they come here to dream of dancing. Go to the Youth Palace to see what they like and practice what kind of dance they like. I wish you success in your study.