She is 20 months now so I have changed my mentality a bit because I feel like the end could be in sight. I want to do all I can do to get her potty learned sooner than later, without putting pressure on her. For me that just means not being lazy about reminding her, and not using diapers at all during the day, even when we go out. Today I took her out in underwear. We went swimming and she peed before and after, and then we went grocery shopping and I never worried. I am hoping tomorrow will be a dry day.
The one thing I must not let myself do is get angry if she does have an accident. I am never mad at her, but I do get mad at myself, and it does no good to show that. I just have to remember that if she does have an accident she is still learning and gaining understanding of how it all works.