Growing Pains

Recently I think that my children were taken in the middle of the night and replaced by daemons that will just refuse to do anything that they are asked, default action is "Scream" followed by hit, bite, scratch or kick. It's been very frustrating and now I am trying to figure out how not to lose my mind and make things worse. Seems that my eldest has rubbed off on the youngest and both have found this new pattern of behavior to their liking. Stuck in a rut with no way out is more like how I feel. We have tried punishment, taking away things, spanking, yelling... none of it has worked. I am beginning to think that we won't get of it without professional help. Is this too soon in their little lives to be this messed up emotionally? I wonder if my erratic work schedule where I can work up to 18 hours a day at times has anything to do with it. This week I am on vacation so I am going to see if some interaction and less television time does the trick. Trying to deprogram them before we hit the road for a long drive to see the Music City....