Just a bit of background - dd is undiagnosed. I work with teenagers with learning difficulties/disabilities. We have suspected AS since dd was around 2. Haven't gone for a diagnosis as if it is AS, it is mild and up to now we were coping.
We asked the school about 6 months ago of the relevance of getting a diagnosis and they denied all knowledge of dd having any aspects of AS whatsoever.
To be fair to the, dd does have a "home" personality and a "school" personality and has taught herself how she needs to behave at school, no meltdowns, internalising her stress, etc.
Anyway, dd is having problems dealing with anger and stress at the moment. We have had another evening of her crying that she just wants someone to help her with her temper.
I am out of my depth here 
I just want someone to tell me what to do please?!