请帮我修改英文信且请尽量帮我用从句,

请帮我修改英文信且请尽量帮我用从句,
朋友的地址
04.09.10
Dear friend:
Happy birthday!生日快乐!Although I was not sure whether this letter can be arrived to your school on April 13th.As a matter of fact,pity is a common emotion of human.I am exception.For me,if had not left Nanning,I would have joined your birthday party.
You are my best friend in China.We have become friends sice we just entered the No.8 Middle School of Nanning.We studied together in the daytime although I did not want to study sometimes,hung out in our free time,talked about other people's gossips,hung out in our free time,and so on.Once,I was distressed about some matter,you were a caring and good listener and listened for my trouble.Then you gave me some good advice and made me relax.In my opinion,we made a lot of precious and happy memories together during our high school life.
Now that,I cannot join your birthday party in Nanning this year,I wanted to make a special present for your birthday.The present was that wrote down"Happy birthday" in the languages of ten countries.It is not everyday a birthday,so hope you can enjoy my present(这句抄的).May it be followed by days and weeks and months and years of happiness for you.(也是抄的).
Sincerely,
JieHuang（不知道为什么名字空不了格） 我的地址
（用另外一张纸写签名作为礼物）
我真的很希望大家能够帮我