My son has autism and ADHD and we have tried all of the above. Some things worked, somethings I wish we’d never have spent any money on whatsoever, lots of people peddling and praying on us desperate Sen parents who want what’s best. I can vouch for for Dr Rachael Gow, I’ve met her and she is a mind of information about all things adhd and diet, my son is quite rigid in his eating so it didn’t quite work out for us but she has a wealth knowledge and I think she has an Insta page which is really helpful.
I don’t subscribe to the whole healing autism thing as it’s a life long condition and it’s about helping them adjust along the way with lots of different interventions be that diet changes, OT, speech therapies, cbt, sensory integration etc. Also I think the world could do with a little teaching on neuro-diversity, not trying to make them fit into our expected norms, schools need to make reasonable adjustments too. Anyone that’s my thoughts.
You’ve been given some great advice, I’d prioritise the assessment first, definitely get on the waiting list at least then your in the system, reach out to the Contact charity see what they say about getting a private assessment, they are amazing too and are a great signposting service. Although she’s retired from the NHS DR Daphne Keen still runs private clinics and used to be the lead consultant at St George’s for autism and adhd assessment teams, she knows the system inside out. Hope that helps, lots to digest.x