请会英语的高手,帮我看看这篇自我介绍有没有语法或单词错误,有的话帮我改改..再帮我润色一下

I am honored to participate in this competition.
It's my honor to introduce myself to you.I'm Wang Siyi,I come from Zao zhuang Tai er zhuang.I have spent 12 years in my life.
I’m open minded,easy-going,warm hearted with a sunshine smile.Also,I much enjoy making friends from all walks of life..
I'm very happy to take part in this compition.Of course I'm a little nervous.
.That time my English is very very bad.I couldn't say out Twenty-six English letters .and it lasted Gread 5,after an exam ,my parents asked me to learn my test books of Gread 3 4 5,so my English became better.If this is not the case,I will not take part in the compition.
In the sixth grade when,my father in order to improve my oral English level,let me every Saturday to see a foreign English classic films,I remember I see the first film,called" ET" my this habit has not changed.
I paly dulcimer about four years ,and I Learning Latin dance about three years.I think it’s one of the most beautiful things all over the word.
I admire many Europe and the United States stars ,For example justin bieber ,Avril ,lady gaga .many people is very Surprised when they heard i like lady gaga .they don't like her Costume.but i don't think so.she has her special style.I love her music.
I like reading very much.My favorite writer is jiangnan And now I am reading a book called I keep reading half an hour every day.
i think english is the most beautiful language not include Chinese .Like a biautiful song .My dream is going to be a Diplomat.x05
My speech is over ,I hope you will like me ,thanks.