Jessica, I was a custodial stepmom too, skids lived with me 365/24/7. If you keep trying to be the disciplinarian things will continue to go downhill. You will get more and more miserable and your SS will get more and more agressive on his rebellion. You can't do it. You aren't the parent. Unless your DH is the disciplinarian and backs you up 100% this is going to spiral out of control more and more as time goes on. He isn't your child. You didn't give birth to him. You were not responsible for how he was raised for a long time. You can't just become mom.