I am not worried. This happens every season. For some people it takes them a while to get the point. I enjoy seeing Jillian ge to work on them and break their walls, and show them how to BE the amazing, strong person they want to be/can be. The ones that come on the show ready to do their all...well, that is great for them. But maybe they might have done it on their own too. The ones who REALLY need Jillian are the people like Michael.
As someone of Italian descent myself, I recognize the Michael is still kinda a mother's boy. I have a feeling that with Maria gone, he will realize he can do this on his own, for himself.
I will give him three more weeks before giving up on him. Most people make a turn around by then. That's is where true show heroes emerge.