假设你是星光中学高三学生李华。你在国外留学的好朋友Peter最近写信向你倾诉自己的烦恼。得知他最近因为学习压力大经常失眠，学习效率严重降低后，你决定给他一些建议鼓励他。请你根据以下要点提示写一篇英文回信。
要点提示：
1.寻找同学倾诉自己的烦恼，请同学帮忙解决遇到的难题；
2.积极主动学习，保持乐观态度；
3.积极参加体育锻炼，增强体质；
4.烦恼时多听音乐，缓解学习压力。
注意：
1.词数100左右；
2.可适当增加细节，以使行文连贯。
给朋友的回信英语作文范文：
Dear Peter,
I was very sad to hear that you were suffering in your studies. I would like to share some advice with you on how to study efficiently.
Firstly, you can talk with some close friends about your problems and ask for their help. This is an important way to deal with your problems directly. Secondly, try to study in a positive way. This will decrease your study pressure, making studying an easy job. Third, spend time doing exercise. Not only dose exercise build up our body, but also it provides time for us to refresh our mind. Last, you can listen to some soothing music, which will be a good way to improve your current depressed mood.
I hope all this information can benefit you.