Suicide is not the best option and for it not to become a norm, mental health need to be taught at all places where human beings are found. both at home, church, workplace, television, radio infact in all gatherings of humans.
Yes you are right, people are going through a lot and no one knows what they are going through, they try to keep their challenge private. People who are experiencing mental health don't know how to come out from it. If we start teaching how to handle mental health issues I think the rate which people commits suicide will reduce.