Self Introduction ( In English )

  This is my homework. My Class teacher hopes my class can write a self introduction in English.(50 words)I think that not so hard and diffiduct.But I know my grammar isn't very good so that I posted my self introduction here.I hope you-all call give me some suggestion.Thank you.  

P.1M    Cherry Yu ( 40 )

  My name is Yu Man Sze. You-all can call me Cherry. I am twelve years old. My hobby is drawing pictures and writing stroies. I like this two hobbies because I can use this two ways to express my feeling and I'm very good at them. I think I have a wonderful family since my parents love me very much and they always teach me many things such I should share the loving care to the other people,honest and study hard. My motto is ''Never say die'' which is very improve myself.