Actually try encourage your brother on positive way. Nothing embarrassing for you or your family because he was your brother. Please share to your mom dont think negative way.. Always support your channel from malaysia chinese.
Treat him like a normal person. Talk with him. Give him listening to music and books for reading. Perhaps watch some KZbin videos daily too such as travelers' documentaries which can be similar to going for trips or holidaying. This will help his brain going off from depression and give him time to recover. Do not ignore him.