Hi Alan!
I've heard about your participation at school concert. You've made a heroic action. I think it's very difficult to make yourself to do something. I'm proud of you!
As for me you know I usually take part in sport competitions. I know how difficult it is to perform something before the audience. You are all right.
I'd like to change my character trait and to be more sociable. I can't say that I'm shy but it's rather difficult for me to make friends with somebody. I'm looking forward for your letter. Hope hearing on your new victories over yourself .Maybe some day I'll watch you speaking or singing by TY. Of course , it's a joke but who knows. ..
Bye-bye.
Your true friend (имя)