It might be beyond this…but perhaps you can get some good ideas from the book “Yes, your Teen is Crazy.” It’s a bit humorous, but the author has some good ideas.
I would see if your son is willing to go to a therapist and discuss the possibility of medication with the pediatrician. Likely a referral will be needed to a child psychiatrist.
If he has ANY interest or talents…explore them asap. Art, soccer, band etc. Find clubs , get a tutor…whatever…big time explore his interests with him asap.