If you have legit adhd, there is no diet or lifestyle than can replace the misfiring and/or depleted norepinephrine and dopamine. That being said, the sleep thing can be hard. I’m on melatonin and low level antidepressant to help me sleep through the night. It’s not always the best quality of sleep but it’s way better than only getting a few hours of sleep like I did for the first 30 years of my life 😁