以my sister's card report 为的一篇英语作文,

Dear Martin
This is Percy ,today I got my school report card for final term exam.I was very nervous when I saw my English report.It was discouraging.I want very much to learn English well,but I don't know how to do it.My problem is that the textbook Go For It is too difficult for me.There are so many words and expressions to remember.Sometimes I can say them,but I forget how to spell them when I write them.Ianswers .Could you please give me some advice on how to improve my English?I really need your help.
Thank you very much.Please write to me soon.I am looking forward to it
Yours ,
Percy