Austic adult with struggling undiagnosed austic child

Hi all, 

I'm at my wits ends not sure where else to reach out to, I've tried the school to help and support my 12year old autistic, dyspraxia & adhd girl - that I've known she's got due to my own working teaching studies, but trying to get the support for her over the several years has been very challenging. 

She's now reached a point in her own mind that she struggles to cope with the layout of Secondary school with different teachers, different methods of learning techniques and different personalities of teachers and school children. 

I've explained this to the school, but they're very of ignorance to it, and will tell my child off for not coming into school and I'm getting many fines for it.

I've applies to the child's mental health team but they came back saying there's too many children on the waiting list and my child isn't displaying of any distrusting  nature to other class children, therefore, my girl isn't being accepted on their waiting list.

I've tried to go private but it's a similar situation.

So ive taken my girl out of school for 2 weeks, and all I'm getting is fines and complaints from the school.

What more can I do to get the help I emergency need from hampshire County Council, without my child attempting to take her own life as she's already trying to make herself sick & refuses to talk to anyone but myself. 

I've tried to reach out to her dad, but he's being very difficult & saying that she's fine when she spends the super limited time.with him, for which he's chosen against family courts wishes.