看一下有没有语法错误

看一下有没有语法错误
Everyone has a family.We live in it and feel very warm.There are three persons in my family,my mother,father and I.My father is a businessman.My mother is a civil servant with a bad memory.She always does a lot of housework.
And I have also a cousin,her name is xixi,she is a university student in the art school,she is 20 years old.she is good at paint.Her works all are very nice!In high school,she is a popular person,My sister is shy and funny.She is good at sports and does well in basketball.But she hates studying and her grades are bad.She likes telling jokes.She always plays jokes on his friends and my family,and always makes us laugh.
I like them very much!