Life in a Letter

You guys all know about my undying, complete and total love for Harry Potter, and if you're new (hi!) and you don't yet, trust me, you will. A few months ago, I discovered this site: Dear Mr. Potter, It's started by a high school girl, Lily, as a blog-based charity project. She's encouraging people to submit their Harry Potter experience stories to be considered for a book she's trying to get published about being a part of the 'Harry Potter' generation.
I really want to submit my story, obviously, but really, how do I express this feeling? Do I include a picture? Should I shelve my inability to craft/draw, and try and create something? Should I record a video or song? Nothing seems like enough. I want to be in this book...more than anything (above going to medical school, but below meeting JK Rowling on the scale of obviously properly prioritized life goals). I know I'm not alone in how much this series means to me and my life, but I have a secret selfish notion that it's meant the most to me, that my childhood was the only one so immensely affected. I know, objectively, that this is irrational, but even if I try to put that feeling aside, I have absolutely no idea, you guys, how to go about doing this.

Please help me. Any suggestions are so incredibly welcome.