Hi, Welcome to Health care magic forum.
As you describe he is capable, and going in the right way. But i also advise him to take some medication,advised by the doctors.
He should take care of his general health as well.I some thing is wrong,he may attribute it to the mental health.When ever he gets some health problem,he should get advise by the physician.
He should have some money in hand,and you can have some supervision over it.
I advise him to practice,
yoga,
meditation,and some earning procedures,like internal decoration,internal gardening,or vigetable gardening.
You don't explain all this, let him read the reply,by him self,if he is convinced,it is well and good.
Wishing for a quick and complete recovery. Thank you.