Long story short, the pediatrician says we need to PT DD2 (18 mos) and we need to do it asap. Any tips? She is dry overnight occasionally so I know she has some capacity....her language skills are good as well so she can tell me she needs to go and has on occasion. She seems awfully little for this, though, and I've never done this under pressure like we are now. She has to train. Any tips?