Hi there, as a father of autistic son, I can feel You. But hang in there, your son is young enough for some interventional therapy. We pursued floor time therapy which is play based and it has helped our son since. OT and speech can go a long way in helping your child express them better and navigate their life better. If you do decide to send your child to a public school, make sure they can supper your child with special needs education program. They initially need a lot more of your attention but depending on now how their cognitive functions turn out they can go on to become more independent. Good luck, and if you need someone to talk to my contact info is in my profile.