The academy is looking for people that are well rounded, energetic and show leadership potential. Have a sense of humor. If you do attend the Academy, the first face you encounter will hardly be a friendly one. There will be alot of yelling and shouting and orders given. Some upperclassmen will make fun of you or make bets on who can make you cry first.
Nothing is worth crying over.
Think pleasant thoughts and maintain your dignity. Don't take things personal, don't be oversensitive. However, don't let anyone sexually harrass you either. Finally, don't bank your hopes on one school. Your application cannot fully represent who you are.