My youngest daughter turns fifteen in 21 days, 22 hours, 16 minutes and 41 seconds. I know this because I have been counting down the days for a little over six months now. It is with keen anticipation that I look forward to saying, "Good riddance 14, don’t let the door hit you in the ass on the way out!" because if there's an "official" worst age for girls, 14 is it. I may not have reams of laboratory data to back up my claim that fourteen is the worst age for girls, but I do have field …