Overcoming Writer's Block

So I'm traveling back home, and I'm watching Six Feet Under (season 2, episode 5).

In this episode, Brenda decides to write a book. She doesn't know what the book is about, only that the book will be fiction.

Halfway through the episode, she flips open her little Apple laptop computer, and struggles to type even a word. In her head, lingering doubts appear....manifested in words on the screen. At first, the thoughts are semi positive "Go ahead, write." But then the nastiness appears, "What exactly do you have to say, that hasn't been said before?"
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In the show, Brenda uses that as her cue that writing isn't for her. She dramatically closes her laptop, she's done writing, and we aren't going to mistake her actions in any way.

While she can do that, I realize that I'm actually in the same place as Brenda. As I've mentioned before, I applied to business school last year, but didn't get in. Since I'm most concerned about my GPA, I've decided to take a summer class at the University of Chicago to strength my application.

Unfortunately, in order to take a class, I'm required to write an essay. So, I'm like Brenda, struggling to type even a word. Its not the verbiage, or the physical act of typing words (I can type about 60 words a minute), but rather...I am struggling with "What exactly do you have to say, that hasn't been said before?"

So as I float along at 30,000 ft, watching Six Feet Under on my laptop, I'm asking myself...How do I dress up the typically application essay to make it compelling, interesting, and insightful?

Anybody have any tips for me?