What drives an apparently successful person to kill himself? By 'successful', I mean that by social yardsticks: money, mate, status, looks, popularity.
I feel that a person can kill himself only if he feels life is not worth living. So, inspite of havings all the trappings of success, such people are not comfortable with themselves. No amount of earthly success can guarantee happiness, if self-esteem is low.
When a person does his best and is not impatient or greedy for result, when one makes decisions based on his conscience and common-sense and does not succumb to the opinions of others, he does not kill himself.
Life is both a test and a gift. One ought to respect and cherish it.