When writing your college essay it is important to remember that you are a product. You are trying to sell yourself to the colleges to which you are applying. Why do they want YOU? What about you makes you valuable to the school(s)?
Many essays are sweet, entertaining stories, but unless the the college admissions counselors can easily identify your "so, what?" they have no reason to see it as anything but an entertaining story.
Want to see some examples of effective essays? Johns Hopkins admissions office posted 6 successful essays that they received. They even shared their thoughts on each one. Check them out: