I agree with Janet. If you're not already in therapy, family therapy might be a good place to start. If no-one else in the family is willing to participate than go yourself. I learned alot from the various therapists that entered my life (difficult child's, easy child's and my own).
One thing I learned from therapists was how to disengage from arguments with difficult child. Arguing with my difficult child is futile,nobody wins, it just causes the situation to escalate.
