Caring for a mentally ill person is not a walk in the park.
It takes patience, faith, love and compassion.
It can be difficult, frustrating and torturous.
The torture comes from being unable to help the mentally ill person.
You can give a person a jacket to combat the cold weather. You can give a person water if they are thirsty.
It is not the same thing with a metally ill person. A jacket and water do not alleviate the situation.
All you can do is do your best. Talk things over. Do not hold your feelings inside.
May GOD always bless you.