You guys gave good options for him.
I say he should goto a priest for an exorcism, remove whatever entity is messing with him and then try putting his life back together.
If you know that you have mental issues and are taking pills then just banish this entity and just leave magic alone.
I cannot actually believe you have asked what seems like dozens of entity’s to help you with no good effects.
Listen mate, you know in yourself you ate mentally unstable so please stop reliving deeper and deeper into this just try making it simple. Remove the entity via a priest and relax.
I can tell you this off the bat, whatever pills your taking are more than likely causing all these problems. You really have no idea what’s in those pills and what they can open you up too either.