1. Life is not fair. Get used to it. 2. The real world won't care as much about your self esteem as your school does. It'll expect you to accomplish something before you feel good about yourself. This may come as a shock. 3. Sorry, you won't make $50,000 a year right out of high school. 4. If you think your teacher is tough, wait until you get a boss. 5. Flipping burgers is not beneath your dignity. 6. It is not your parents' fault. If you mess up, YOU are responsible. 7. Before you were born your parents weren't as boring as they are now. They got that way paying your bills, cleaning up your room, and raising children. 8. Life is not divided into semesters. You won't get summers off. 9. Smoking does not make you look cool. It makes you look like a moron, and will probably kill you. 10. You are not immortal. 11. Your school may be outcome-based. Life isn't. 12. Enjoy this while you can.