hmm sorry i havent got much adivce, expect to say i HAAAATEd my lil sister when i was a kid (actually probably til a yr ago when she got mature, im 22 shes 17) and spent most of my childhood making her miserable and her dobbing on me in turn making my life suck cause i was getting in trouble. i can only just tolerate her now she still does my head in but were both still alive and my mother isnt completely insane haha