An Xmas Letter?

So I've heard that Americans write letters on Xmas about themselves and send it out to people. I've never done this before and don't know anyone who has, so here is my first attempt at it, enjoy:

Dear Everyone,

Ahh, It is Xmas already. This year has been nice.

I'm really great and you should be very jealous of me.

Thank you for your attention,

Laura D

P.S. My Xmas will be better than yours.

Did I do it right? :D I think I did.