What is the experience of having a delicate younger brother?

I really love and hate having a handsome brother. Seeing that he is so beautiful, I really don't want to beat him to death, but sometimes I can't stand it, and then there is a habitual thing at home, which is to beat him instead of hitting him in the face. My brother is in the fourth grade. Although he is a little good-looking, he is really poor in his studies.