假如你是心理咨询员Sigmund Friend，近期你收到初三学生Jack的来信，请针对Jack的问题，给他提些建议。

Dear Sigmund Friend, I have just entered Grade 9, but we have so many exams. And every subject is even harder than before. I have a lot of homework every day. Sometimes I find it difficult to finish it. So I often stay up late. In the daytime. I always feel tired and sleepy. Also, I am often in a bad mood these days. Whenever my parents ask me about my school life, I just feel very unhappy and angry. What should I do? Can you offer me some advice? I’m looking forward to your reply. Yours sincerely, Jack

要求：1. 意思连贯，符合逻辑，书写工整。2. 词数80字左右。开头和结尾已经给出，不计入总词数。

Dear Jack,

Thank you for your letter. I know as a student in Grade 9, you have some problems. I hope I can help you.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours sincerely,

Sigmund Friend