I've just uploaded a couple of great college essays that you can look to as examples of the form. Both essays are great examples of using anecdote in your essay, and highlighting the importance of overcoming obstacles in your life. (One of the most common essay prompts you'll find is on obstacles).
Feel free to read through these, and use them as models. Think about what works in them, and how you could implement similar techniques for your own essay.
Lastly, this is not assigned, so it is entirely up to you to read them. I think they could be quite helpful for those who need inspiration.