Oh Rhonda, I'm sorry that your daughter has all those things on her plate. My DDIL says that she know God wouldn't give her more than she can handle, but sometimes I'm not so sure. Mostly, though, she's my heroine, as Sara must be yours.
People with Asperger's often turn out to be high achievers. Have you heard of or read books by Temple Grandhin? I may have spelled her name wrong. She's an Asperger with a PhD. Absolutely. I recommend her books highly. She really gives you hope about autistic people in general, and Aspergers in particular.