My son was similar at that age. OT and the psychologist helped a lot, but the waiting period for the eval and treatment start seemed like it took forever!!! But once we got started, everything clicked like a textbook case. And it is a longterm, ever changing process. We are now waiting for "new" OT to teach DS7 strategies for a 7 year old since he is relying on the strategies he learned as a 4/5 year old and they are no longer effective! He dropped flat to the floor screaming at school yesterday because he couldn't find his water bottle...
I use the night-time praise and snuggle also; but I thought it was just to make me feel better...I'm glad to hear it might make him feel better, too!! You will get through it smile Nan