Dear Mike,
In your last letter you told me about your troubles in the process of going over your lessons.Therefore, i would like to give you some advices and suggestions as below.
First of all, the problem of your English skills.Although you studied very hard, your marks of exams still did not make progress.I believed that you'd better change your studying methods.For example, reading more English newspapers or listening to English news will promote your feeling toward the language.Moreover, keeping in mind that English is a tool of communication instead of a kind of knowledge.So, please speak English often and chat with your friends in English in your spare time.Secondly, you said you fight with people around with while you had a bad mood.Please remember a person with good characteristics should hold his temper so as to behave rationally.You should know that quarrelling with others is not a good way to solve problems or establish good relations with others.
As what i have said above, i am sure you will overcome your problems by doing so.
Sincerely Yours,
Yang Fan
我不清楚LZ需要多少字的作文,所以多写了点.如果觉得长可以适当减去一两句话.