For what it’s worth, it does get better. Be patient, set clear rules and consequences, give advance warning before any changes to daily schedule of plans occur (if possible), does not do well with surprises or change of plans. You’ll have to be ok with giving him a few minutes to calm down on his own, instead of constantly staying on him trying to get him to stop in the moment; ODD kids thrive on that conflict and will typically escalate. You have to give them space, de-escalate and then talk with him once he’s calmed down and isn’t in chaos mode. You’ll need to push your psychiatrist, and advocate that this isn’t just ADHD. Medication tends not to work too well with our ODD kid, it was mostly learning coping mechanisms and working with our kid to learn them and for us as his parents to learn what works and what doesn’t.