Essays / Essay on Emergency Medical careers - need some assistance [3]

Ok, as an intro, my names Josh and I go to a small community college in a small town. I won't really give out much more info then that. But I'm writing a essay on Emergency Medical careers, as in EMT's, Firefighters and what have you. I've written the body of the essay and the conclusion, I just can't get an introduction that I really like. Ultimately I've gone through about 15 intro's and just end up erasing them. This topic is something I am very passionate about considering I am an EMT-B and a Firefighter-1 and although I'm just starting out I've probably seen more then I should. But any advice would help.

Thanks.