Need advice on how to deal with my 8 year old dd who is undergoing tests for ASD. I'm finding it very hard to keep calm when she is having one of her meltdowns and find myself yelling at her which I know is the completely wrong thing to do. Yesterday morning she suddenly decided that she hated all her clothes and dumped the whole lot on the floor of her bedroom then had a meltdown because she had nothing to wear !! She took ages to calm down, she also hates her tangly hair but refuses to let me near it to brush it so we had a meltdown about that too! I'm find her exasperating and frustrating but I know it's not her fault so when I yell I feel awful and like a terrible mum. Advice please ?