Anxiety and/or depression goes hand in hand with ADHD. I've had chronic depression since I was a kid. Wasn't diagnosed until I was an adult seeking my own treatment and wasn't dignosed with ADHD until late middle age. It sounds dystopian to suggest even a rudimentary checking in for everybody to screen for neurodivergence and mood disorders in high school, but we get screened for scoliosis and vision already, at least where I am. I'm not saying diagnosis should be done by any school-visiting medical group, but recommendations for further testing if a possibilty is there--all under HIPAA for privacy of course (if you aren't in the US, it's a law prohibiting medical personnel from disclosing private medical history).

Anyway, I think earlier diagnosis would've helped us all.