Sucker Fairy Update

So "the sucker fairy" idea has not been working lately.  Campbell has not been doing well at all when we put her to bed.  She cries a lot and is basically inconsolable.  We try to be consistent with disciplining her but nothing is working right now.  We need all the prayers we can get with her.  She is definitely our most difficult child and pushes both of us to our limit.  We want to learn how to love her well in the ways that she needs.  Needless to say, she hasn't gotten a sucker in a while.  :(