I only skimmed the previous posts so if I repeat what might have already been said forgive me.

Basically on the school part, is this regular public school?
It could be just too over stimulating for her still.
Have you thought about trying an online school for her?

My dd used one for getting a few final credits and the one we used let them proceed pretty much at their own pace. A few hrs here & few later in the day even late at night if that is a good time.
Does she do Ok on a computer for short times?

this is the one we used but there are many others available ,some are free if linked to your state school districts -
http://www.connectionsacademy.com/home.aspx

PS - just read that it was tried already... maybe at a later time, or maybe it was the way that particular school software was set up. I noticed some use small fonts and only a narrow portion of the screen.

How did she get the original injury?
car accident , fall , sports.. ??