Dear Xiaoming,
How are you recently? Hope you are fine.
Although I experienced hard life in the past years, yet I always made effort to study and felt that my life is very substantial. Now I have graduated from high school. I feel very well and ease. I have confidence that I can get good mark college entrance examination and win the letter of admission of top university after summer holiday. I am very longing for the university life and think that I can have a wonderful life in future.
Wish you are happy every day and keep in touch.
Yours Sincerely,
XX