Where did we go wrong?

I could sum this whole post up in one word, Teenagers. How do you get to a point were you can't remember what your child used to be like. The cute little boy who wore daddy's cowboy boots and hat, who you rocked to sleep on a pillow sitting in the recliner, who used to run at you with open arms wanting a huge hug. The adorable little face with the large blue eyes with the longest lashes who had a love for kitty cats...well, at least he still loves kitty cats. Loving his parents is completely unheard of, and appreciating them is no where in his mindset, probably can't even fathom it in his life time right now. You try not to let it consume you, but the anger builds with each sharp sarcasm, with each ignored word. The urge to wrap his mouth in duct tape and let it sit there until it sticks all gummy to his little peach fuzz...yes, that would be satisfying.
What did life used to be like, when we were normal? It feels like an eternity ago. I can't imagine going through this 2 more times. God, please don't let the other 2 become this way, I may not survive it.