Comfort and advice! Self help groups and therapy sessions are the best bet. People with suicidal tendencies tend to get comfort from others who feel the same way and meeting people like this will be the best way to come away from these tendencies. There are many therapy sessions that are organized by nonprofit organizations that will be helpful. But also remember that it is all in the head and unless you decide to change your way of thinking no one else will be able to help you. Identifying and accepting the problem is the first and most important step.