I have a 4 yr old girl. She use to cry always. We I go to convince her she will start crying like any thing. If I try to divert her she will not get diverted until I rise my voice . Some times it even ended in slapping her which I feel very bad on myself and I feel depressed on this act. If I try to convince her with chocolate and other things for even hours also she does not get convinced. And in midnight also she use to cry atleast for half an hour daily. She has very restless sleep in night. How can I help her