hello Matt, a couple of things, it sounds like your bitch isnt fit,unless your not giving her time to get her tongue back in between runs? and yes try and give her a few sitters to start her off with, and she is still very very young, so just keep at it, and i'm sure it will all come together. You don't say how many times you've had her out on the lamp? It would help her if you could go out with someone with an experienced dog,