One of my first lessons dealing with my son’s late diagnosis (in high school) was just because it worked for me, doesn’t mean it will work for him. Stop trying to get him to write it down. My son takes a photo of the assignment board for all his classes. It’s in his 504 but most teachers allow it for all kids because it’s just the way the world works now. I know meds aren’t for everyone, but once my son started his meds he went from D’s and F’s to eventually straight A’s. He’s engaged in school now, no longer missing the majority of what’s being said during class, better able to retain the information, and even maximizes his study hall and lunch time to get homework completed so there’s less to do a night, especially as meds wear off. The biggest difference is in his self-esteem. He no longer feels “stupid” and finally his grades reflect his intelligence. But it’s not just about the grades, he’s building better relationships with his teachers and classmates because he is able to function at school and feel good about himself. He’s even starting to self-advocate. ADHD and EF challenges are no fun. But with the tools, accommodations and meds your child can find success and feel good. There’s a lot of trial and error involved. Good luck!