“I’d appreciate some suggestions please. I have 2 & 1 year old girls. The 2 year old is generally pretty horrible to the 1 year old. She smacks, hits and hurts her quite often. We give them both 1 on 1 attention. We have tried the no, then time out, maybe we’re not doing it right? She has also started lashing out at daycare.” Do you have any tips for dealing with sibling rivalry?