Tom its allways hard to get out of the place where we feel down and sad, sometimes all you can do to help your girl is to simply "be" there for her, hold her, support her listen to her, based of what i know of yu through the forums id say yu allready do that

not too long ago when i was having problems, my husband/dom sugested that i start dancing again, (the premis was i would be doing it for him, so i could dance for him, as he had never seen me dance before--so in a way it was also a bdsm type task) it had been years since i had done it and it was something that let me focus on something other than myself so to speak,, eventually though as i got back in the "saddle" , took some classess trainned for that day when i could do it in front of him and started to do well at the dancing, i realized i was stronger than i thought , a feeling of self accomplishment started to build back up in me, it was a big self esteem boost,

i dont know all the paticulars about you and your girls life, but perhaps there is some motivating task and or activity that you could give her to focus on to build her back up

hope this might help ya some, my prayers for you and her