Find out all of your favorite famous person's flaws. All of the quirks and bad habits that bother you about regular human beings exist for celebrities, too. Being rich, beautiful and famous doesn't make someone immune to being annoying. In fact, it sometimes leads people to be spoiled rotten. Focus on your famous crush's flaws and hopefully that attraction will soon start to fade.
Write your famous crush a letter or join the fan club. Notice that you get either no responses or formulaic responses that go out to everyone else who tries to contact this celebrity. Keep in mind that you are one of many people who cherishes a crush on this celebrity and that your chances are equally slim of ever turning your fantasy into a reality.
Arrange to meet your famous crush if at all possible. Splurge on a backstage pass or go to a screening, and you should soon start to see that your crush treats you like everyone else. Just keep the focus on how hard you have to work to even contact this celebrity and how utterly insignificant you are to the person who means so much to you.
Take a trip to Hollywood and spend some time among the celebrities. Look at the lifestyles of the rich and famous and be honest with yourself about where you fit into that glamorous picture.