DS is 7, DD is 11. They fight like tom and gerry ALL DAY LONG - pushing, hitting, pinching, shouting, screaming. About anything - noisy eating, who has the biggest corn on the cob, going into each others rooms, taking up too much room on the sofa, whether the sky is dark grey/light grey. I am NOT handling it well atall. My patience is extremely low and I end up screaming at them, stamping my foot, literally begging, i have cried openly in front of them recently whilst begging them to stop. I suspect I am the probable cause of their behaviour - if I have low tolerance, how can they be expected to be calm etc etc. I am lost and really need to hear from anyone with kids who just don't get on, what changes can I make, what coping strategies can i adopt, how can i get them to be in the same room without it causing near murder. Please help!!!