How Can Depression Along With Anxiety And ADHD Be Treated?

Hello. My son is 12 and has been diagnosed with many mental health disorders including: Major Depression, General Anxiety Disorder, ADHD, Frontal Lobe Delays, Executive Delays and also has an undiagnosed mood disorder. He is also soon to be tested to see if he s in the spectrum. He has extreme behavioral issues, is extremely fatigued and has always had a hard time sleeping, as well as highly uncoordinated. I came across some information about Wilson s disease, and based on the symptoms it has made me curious if this may be the culprit? And looking at his eyes, I am wondering if he has Kayser Fleischer rings. I have a picture of his eye that I can send to you. We have just come to terms with all of these seemingly separate illnesses, but starting to wonder if they all just point to one thing. Thank you so much for your time!