An America man with a slight Russian accent came up to me at the Kotel and asked me to help him to put on tefillin. After he said the Shema and prayed for his family and for his other needs I asked him what he did for a living. He said that he was a doctor, a psychiatrist. He said that he works helping people to recover from alcoholism.
I said, "I have found the greatest mental health tool is simply to focus on good thoughts. All of us always have good going on in our lives and we also have bad going on in our lives. Whichever one we focus on that will be our mental condition. Depression can be left behind by forcing yourself to focus on the good.
"Do you have a tooth ache? No. That's good. Do you have someone chasing you trying to shoot you? No. That's good. On and on until you train yourself to focus on the good things and depression will be left behind."
He said, "You should open a clinic."
I said, "I have. You're standing in it."
Everyone you have the opportunity to speak with was put there for a good reason. You should look to see if you can pick them up so they will have a more successful life. All the more is this so when you help someone who helps others. In those same few minutes you will end up helping hundreds of people.