First experiences can be defining. Cite a first experience that you have had and explain its effect on you.

456-word version:
At the age of 8 or 9, I had a peculiar bedroom, which hardly resembled that of a typical child’s. At least I had a bed, so any complaints were unwarranted, but that was only if you could find it amidst the vast tomes that encircled it. Of course, I am embellishing just a bit, but to a child, such hyperbole is understandable...