I'm not quite sure what to write about for my speech.?

I'm a 6th grader, and is running for Historian at the Student Council Election. My speech, posters, and petition are due tommorow morning right during homeroom! I'm not so sure what to write. So far, I have "Good morning, teachers, staff, and fellow students. I am Lily, and I am running for Historian. As Historian, I understand that it will be my job is to take pictures at events and emblies. It will also be my job to do the scrapbook. I cannot make any promises that I cannot keep, but I will work hard everyday to achieve the goals I am aiming for. I hope to make you all proud!" The beginnign is teh beginning... teh ending sentences are the ending... what else might you suggest to me to write about? I hope to impress everyone, win, and "Be all you can be" (or school motto). I'll be on the school TVs in front of 8000 people! Plaese help!