My daughter does not sit on a potty seat or pot for poop she tells when she wants to pee.whenever we make her sit for poop as she tells she wants to go potty she cries and tells it hurts. she is not constipated still she is afraid to sit for poop and not ready to listen.i shown her videos books but nothing helping how should I release this from her mind that it will not hurt when she poop. Although she goes to the washroom herself for a pee.