Me and my mother in law are trying to potty train my husbands 3 year old daughter and we have tried everything but she wont use it..we sit her on it and she will kick cry scream jump up and down and even huckle buck on us. We need some help we have tried the potty chart we have tried surprises we have even showed her the big girl panties we got her. She will not use it as soon as we let her up she pees in her pull up. Please help us!