Hello Ruth and welcome to the board.
You are going in the right direction since early childhood development has been shown to help alot.
My sister in laws have put both of their autistic sons in an early childhood development class at no cost to them. You do have to meet certain income guidelines but they are not hard to meet in most states. (I am in Arkansas) I have seen other people post similar programs in their states. Maybe someone else will be able to help you better. But again, welcome!!

Kay