This is the age we discovered my son has horrible anxiety. The behaviors you’re decribing of refusing to do work, hiding behind the desk and the inconsolable meltdowns can all be signs of anxiety. If the patch he is wearing is Daytrana, that’s a stimulant and stimulants can make anxiety worse. I would discuss the possibility of anxiety with your doctor. We did great my son with medication for anxiety first at age 6, then moved to meds to control his impulsivity and other ADHD behaviors once he seemed to be less anxious. Mine is 12 now. ADHD/ASD (added to his dx at age 9) with anxiety and he takes meds to treat all of it. He still has rough days but treating the anxiety, if it is an issue, can make a huge difference in behavior.