How to write a runaway letter? The worse the better. I don't want anyone to answer how to persuade me )

Mom and dad, I'm leaving. Don't look for me. I am so depressed. I want to stay in this house. Guess what? I'm really tired. I have to attend so many classes every day, and I have to go to cram school after class. Every time I come back, I have to listen to my mother's nagging, and then my father is very serious, especially my father, who often doesn't go home. I have to do my homework every day and stay up late, so I have no time to rest. I really want to cry when I think about it. I think this family is a hell. I'd rather wander in the street.