Not many of us were trained in motherhood, any more than in coping with cancer, it's a miracle we adapt as well as we do and kids grow up to be reasonable adults. Aggression is often an externally focused form of misery. Teenage years are notoriously about exploring and being miserable. I learned a small amount from a short period of a two year old's distress at crèche (caused by trying to join in with the five year olds!). The advice was to stay out of it and let her work it out. We all want to fix things - for ourselves, for those we love. One of the hardest things is to accept that sometimes it's necessary for them to work it out for themselves - consequences and priorities. And that it takes time - things don't happen to fit a schedule or our patience. We need to be visible and reachable for our kids but they do have to learn how to fall and get up again. Just as we do.