I agree with dandylion that you should not let her move back in--tell her you want her to develop her independence and you want peace and no stress in your living environment.
It is your house, and you call the shots.
It will be really hard to let go, but it is the best thing for both of you at this point.
She won't change and grow and she will fall back into her old habits.
Well, those habits will not serve her when she begins a family of her own.
Better she should learn now the value of taking care of her own self and her home without expecting others to do it for her.