The situation is grim in many places, we have recently got a Dx for Dd3, it took 3.5 years from the first appointment!
In our area this time last year there was only 1 developmental paediatrician.
We were lucky, I shouted loud and got a referral to CAMHS, others don't get anywhere. I only knew I had to keep shouting because I failed to get Dd1 a DX and she is now 23.