Creativity is one thing I have that others lack.
^Errr...I would like to think that I also have creativity.
I remember in kindergarten, whenever you were done with your work, you could go play with the big bucket full of Lego's in the corner.
^Unless you were in my kindergarden class (which you were not), you would not know if I played with Legos in the corner or not.
I recently saw the movie "Star Wars" and those X-Wing spaceships and I wanted to build that. So I just stuck my hand in the bucket, grabbed a handful of Lego's and spread them out on the floor. I started building and building until I was satisfied with it. I showed all my friends and they were all shocked and jealous that they couldn't make something as magnificent as mine. Even the teacher was amazed. So amazed, that she put my Lego X- Wing spaceship on top of her cabinet. I was so happy that she chose mine instead of the other kids.
^This was in kindergarden...come on. You can not use this example (I mean you can but it would just be childish).
I was the teacher's favorite student because my stories would always cheer her up since it was her last class of the day.
^Arrogant. Even if this is true and the teacher told you explicitly that you were her favorite student, it adds nothing of value to your essay. Telling a story about a cat and cheese does not impress admissions.
Same goes for your concluding paragraph. Choose a different topic and rewrite.