I know you feel trapped and alone – outnumbered, outmaneuvered and outgunned. That teenager in your house, who bears no resemblance to the cute infant, the entertaining toddler and the young student, is in fact your child.
You can’t remain in denial.
Just accept the fact that everything you think or say will be criticized.
That sarcasm has moved from a form of comedy to their way of life.
That Hercules faced no challenge as great as your teen views taking out the garbage.
That your car is perpetually out of gas when you try to use it.
This, too, shall pass.
Take heart. Someday, many years from now, when your child approaches 30, he or she will move out and start their own life. Realize what it means to make a living and start a family of their own.
And their children shall grow into teenagers.
Revenge!
sfnowak 
I wonder, Steve, if how teenagers act today in their life at home and school is a REHEARSAL for their life in the future? For example, how they act at home is how they’ll act in their future home with their husbands and wives. How they act at school is how they will act in their career and profession. How they interact with girlfriends and boyfriends today is how their interpersonal life will be in their social life ahead. If they are respectful, they will be respected. And, so on. Is today their REHEARSAL for their tomorrow? Was it the same for us as we look back?