I have two, they both have speech and language therapy for their attention, occupational therapy for handwriting and (in DS2's case) general gross motor skills as he also has a diagnosis of dyspraxia.
They've got some social skills stuff going on (circle of friends, talking partners) and they can talk to the school's 'learning mentor' if they feel down.
My youngest has a Statement with an LSA who is with him to keep him on track as much as possible. She's with him for all non break hours and helps him if his anxiety gets a bit too much, as well as encouraging him to talk to other children. During break times he plays with his friends.
The school also gets advice from the local autism unit, they come and observe them once every half term and give the teachers + LSA advice on what they can do to keep them calm and learning. So far that's included a weighted 'cat', sloping desk for writing, move'n'sit cushion (when they were younger) and a card for my youngest to give his teacher when he needs the loo.
They're doing well, and I can't speak highly enough of the school, and especially the SENCo as they've gone to such lengths to keep my children happy. They are still a bit odd but I get the feeling that they're liked and included by most of their classmates and they feel part of their classes.
I understand it's very patchy though, and some of the others on this board can tell you horror stories, so I hope you get the help your child needs!