"Dear xxxxxx
I am afraid you are mistaken. I could not have written my previous mail and this mail by myself.
I would first like to tell you that I can hardly read English nor can I express my feeling in English properly. I am very sorry if I misled you, but I was getting help from others to make corrections on my English letters.
I decided to have a pen-pal in order to learn English.
I asked someone to help me write my previous mail so that I could explain to you that I knew very little English. Hence from now on, I will be on my own; I will not have someone to check my English.
My English ability is comparable to that of a secondary school student. So I will likely to make many mistakes and I may misunderstand a lot.
Even so, I strongly wish to remain your friend.
By the way it's been only a month since I started studying English again.
I sincerely look forward to your reply.
Best regards,
YYYYYYY"
お礼
回答有り難う御座います。 最後のYYYYYYY"ってどういう意味ですか?