Emotions are so hard to control, especially when there's a bit of history to them. In my case, at the moment my husband and I are not getting on so well, arguing a lot, and my daughter is finding it so hard to handle. I hate it when we argue and she gets so upset over it(she's 9) as I can really feel for her, yet I can't seem to stop it for her. I've told her that adults fight because they need to sort things out so they can move on from there. Thing is, I can't tell her we won't split up because the way I feel at the moment, I just don't know.
But I know what you mean with childhood memories like that, they stay with you and control you for so long. I still work on things from my childhood, I need to stop it happening to my daughter too.
Looking for inspiration...