Dear uncle,
How are you recently? I haven't seen you for about one year. I miss you so badly. I am doing fine at school. I am doing great at my study. By the way, I’ve changed my major into English, you know, because computer engineering is not my favorite and language has always been my interest. I feel pretty comfortable in my current major. Perhaps I will drop what I am learning when I compete in the future society, but it doesn't matter. What matters is to learn how to learn and to form an received personality, which you told me. 
Miss you every second!

Yours,
Nancy