Oh firstly big for you hun. Some kids are tough but you are doing a wonderful job because you are doing all you can for her ok.. dont ever forget that.

Not sure if anyones mensioned this or not, but is she old enough you can maybe try a reward system with her? Even maybe (if you havent and can afford to), let her pick out some new bedding.. maybe do her room up.. put some of those glow in the dark stars on her roof.. i know you can get some pretty good ones these days. Does she like massages? DS doesnt as hes too ticklish but i know they can put me to sleep.

Otherwise im not much help hun other than to offer your a big and pray for you that things start to pick up soon.