My oldest son is 8 years old and boarder line ASD and he is have trouble adjusting to having 2 younger sisters, it had just been him and his little brother for 4 years but with a sudden change he can’t handle it.

He hits, kicks, scratches, bites my little girls, we have tried several different ways in discipline and it hasn’t helped he continues to do it, we have tried including him in helping out that also doesn’t help.

Any suggestions on what to do?