有篇英语作文我不懂怎么写好,

Dear Guo Wei,
I am very happy to know from your e-mail that
you are going to take part in English speech contest of the school representing your class, it's amazing! As you have also told me that you were shy and would be terrified of speaking in front of so many people, but you did not want to let your classmates down, I understand you, since you have rare chance to speek in public, it would be quite difficult for you to conquer such, but I think your oral English is quite good, I believe othe people will be impressed if you speak in the contest, the only thing you need is confidence, you should be confident, just regard the contest as a snap, and try your best to win, that will be OK!
I look forward to hearing good new from you!
Yours,
Li Dong