It is extremely difficult to get an ADHD / autism diagnosis and the needed support as an adult. Look up clinics dealing with these in your area, then exclude the ones that deal with children only, then exclude those who don't accept new patients unless in acute crisis, then check the wait times to be seen. Then try to actually message the few left and again, exclude those for more.
Better filtering, while useful, is a fools errand. What we really need is to remove the incentives to produce junk content. I have no idea how but I am pretty sure it is related to digital ~~cancer~~ advertising.