Dear sister:
Hello! In this busy rhythm of life, I suddenly thought of writing a letter to you, although we often chat through ** and WeChat, but I always feel that the form of letters can better express my inner emotions.
First of all, I want to say thank you. Since I was a child, you have always been an important role in my life, whether it is the confusion in my studies or the small troubles in life, you always listen patiently, give me advice and encouragement. I remember that time I didn't do well in the exam and was very depressed, but you were by my side and told me that failure is not terrible, the important thing is to learn from failure and continue to work hard. Your words warmed me like sunshine and cheered me back up.
Recently, my life has changed a lot. I participated in the school club activities, met a lot of new friends, and we learned and grew together. At the same time, I am also working hard to improve my learning ability and hope to achieve better results in my studies. Of course, there are many small blessings in life, such as eating delicious food cooked by your mother and having fun with your friends. These beautiful moments make me feel very happy.
At the end of my letter, I would like to express my gratitude to you once again. You are a role model in my life, and your diligence, kindness, and optimism have always inspired me. I hope we can continue to keep in touch and share each other's lives and joys. At the same time, I also wish you all the best in the coming days and make your dreams come true.
Looking forward to your reply, let's look forward to a better future together!
Best wishes! Your name].
xxxx year xx month xx day.