It's hard for children's authors to be accepted when they try to write adult books. J.K. Rowling is the exception because people are so eager to read anything by her but it took Judy Blume three or four tries before she had a success.
The thing about being autistic is that you gradually get less and less autistic because you keep learning you keep learning how to behave. It's like being in a play I'm always in a play.