My DD has recently started reception in local mainstream school. No formal diagnoses but HV agrees with me there are enough concerns re: high functioning ASD that she has referred DD for assessment, currently awaiting initial appointment (and waiting and waiting and waiting....!)
Anyway, negotiated gradual start of 3 mornings a week and start building up from there... DD is struggling even with this. Having almost daily meltdowns at home now, not sleeping well, says she’s worried about school, refuses to eat or drink there (one reason she doesn’t stay for lunch)
I joined the Facebook group Not fine in school and now I feel utterly horrified and down about all the awful stories on there about how schools have failed to support their children with SEN 

Anyone out there with a success story of a child with ASD attending mainstream school? What do you think has helped? Any advice to give a newbie just starting down this journey?
Should I push for an EHCP before diagnosis for example? Try and involve Senco from the beginning? Try and negotiate a continuation of the flexischooling arrangement we have pre-CSA?
Thanks in advance 