No advice (I don't think I have ADHD, and I haven't been diagnosed), but a word of congratulations on seeking help! Folks in my life that don't have a disorder have a hard time sympathizing with my mental health struggles.
I was in a similar situation as you; in a Dr office going over my results saying that I have x disorder. Just that was such a relief, and there were tears.
Thanks from me and past you for taking that step to accepting your situation and seeking help!
How would that work for the people already using 6 GHz routers?