Have you been dreading the day your teen stepdaughter takes her first exam? If so, you are not alone. A million moms are going through the same thing. It's never fun to watch your daughter fail an exam, and your stepmom is no exception. When she failed an exam, she blamed her stepdaughter's exam preparation on the results of the previous test. If your stepdaughter fails the exam, the last thing she wants is for you to be angry at her..