Dear XXX,
How are you?I know that you'd love to learn Chinese.So please let me tell you how to improve your Chinese.
First,you must bravely and loudly speak Chinese.Just like learning every language,you must speak it loudly.Because oral language is a inportant part of a language.
Next,you can go to see some Chinese movies,listen some Chinese songs or read some Chinese books.
At last,why not write diray in Chinese?It can make your writing skills better.
Well,I hope you can improve your Chinese better and better!
Yours,
XXX