I'm in the same boat as you are. Cheyenne will be 2 in August as well. She will sit on the potty, but refuses to go on it. I'm not pushing it right now; but this summer we are going to really work on it. Good luck to you!
I wouldn't buy too many packages. Your baby may only be able to tolerate a certain brand of diapers. My daughter was that was way. We could only, and still can only, use Huggies brand. The generic brands break her out and the other leaked.