帮我写一封英语信，满意加分！

I am very sorry to have made you worry about me!
I did not write to you last weekend, because I was helping my classmate learn English. I really mean to write to you, but I was too busy to do so. I remember that you have ever told me that I could make progress myself while I try to help others.
Now I can stay at home so relaxly, it is all because I have worked much harder than others before.
Donghai caffee shop is of long history, and it is the place where my groundpa often went to when he was young. You mentioned this in your last letter, which remind me of many things in the past. I miss my groundpa, miss shanghai, and what’s more important, I really miss you very much.

Have sorry to let you worry about! That I am not written a letter by you is because of last on the weekend , I take lessons in English after school in helping a schoolmate , I want to write a letter but do not have time. While suiting you said helping others, I am also improving self. I can be