虽然你写得很中式但是可以看得懂.
Dear America family,
My name is Diana,I am 17 years old now.I live in XX(city),xx(province),China for X years.I’m an outgoing girl,and I have a lot of hobbies.For instance,I love reading,painting and swimming.However,I m not very good at playing any ball games.
Although I only know a little about you,my impression of Americans are polite,honest and friendly.I believe we can get along well with each other very soon.By the way,
I am really love flowers and pets.If you have any pets at home,that will be great.
This will be my first time to leave my hometown,away from my parents,as well as my friends for so long.However,I believe this will be a good practice and challenge for me in my life.Now I am ready,I believe I can do it well.And I expect to seeing you soon.
Wish you have a nice holiday.
Sincerely yours,
Diana