假如你是杨安，你的美国笔友Grace转到了一所新学校，她在电子邮件中向你诉说了她在人际交往和学习方面的困惑与苦恼。请根据Grace的来信内容，给她回一封电子邮件，提出一些建议。词数80以上；信的格式已给出。不计入总词数。

Dear Yang An,

    I haven't written to you for a long time. I went to a new school recently. In this new school, everything is strange to me. I am always shy in front of my new classmates. And I can't understand what the teachers say in class because they speak too quickly. I also get nervous before the exams. I'm so upset. What should I do? Please write to me soon.

Yours,

Grace

Dear Grace,

Yours.

Yang An