英语作文：写一封给自己的信【不知道开头怎么写称谓啊、还有开头的惯用语、后面的结束语】

Dear ME,
I am writing this letter to motivate you
I have notice you are down and out after the annoucement of the school result.Your result is poor and never turn up to your expectation.
However,I would like to remind you,feeling regrets would never help a situation.Life is not the end because of one poor school result.I would advise you to recap what has gone wrong,correct it and move on.
So,WAKE UP!and MOVE ON!
Forever unbeatable,糜亦