Help! DD is 2 years and 8 months and has been potty trained for a couple of months. Now I'm trying to get her to use the big toilet but she yells the place down when I sit her on it and insists on using the potty. I've even splashed out on a Peppa Pig trainer seat but she won't even entertain that! Should I hide the potty so she has no choice but to use the toilet or will that set her back months? Thanks in advance for any advice.