Pray,
Get qualified psychiatric help, preferably from your church.
Remove all electronic devices from his routine.
Coordinate w his school, make sure they are aware, and keep him home if possible.
(supervised!)
Ensure he is taking prescribed meds and monitor behavior closely.
Try positive distractions and activities.
Pray!
If Facebook, Instagram, and Snapchat, all of which DO modify brain chemistry, most significantly in females, needed FDA approval they could not get it.
“Get qualified psychiatric help, preferably from your church.”
That’s the last place I’d go for help. Most preachers I know are nuttier than fruitcakes. (And I know MANY.)
I like you two prays in that list.