My best friend

My best friend is a girl and her name is Monique, she's from São Paulo, we have been friends for 7 years. She is tall, not so skinny, curly hair and she wants be psychologist. She is 17 years old. She is a good listener, but sometimes she is very aggressive, she has a brother and sometimes is very hard take care of him. I do not have brothers or sisters so I do not know how to take care of a child. It's her last year in high school.