How can you help if you don't know who needs help?

How can you help someone that is deserving of help if you do not know they exist? I have realized there are a lot of people in this world that actually do need help or that work hard for what they have, and yet they cannot manage to get ahead. What do you feel is an efficient way to locate these people and offer the resources necessary to turn their lives around. A friend of mine has been miserable to the point that he attempted suicide twice, then he found a psychologist that he never realized existed. (Energy Psychology) Needless to say, he has changed from being helpless to a fully functioning individual in a matter of days. I had previously tried to help him for 2 yrs and was unable to, until I convinced him to look in the right place. Magically it seems the psychologist found him as soon as he made an attempt.