Chado have you asked yourself what your reason for living is? Without a reason to live what's going to make next time different? Call those people that they listed. At the same time take responsibility for your life. You are the only one who has the power to change yourself. So step up, take responsibility and figure out what it is that you want to do with your life. Find a powerful reason to live. This could be anything from becoming a father to living to help others who reach the same point you have. Find your own reason to live and the problem will likely disappear. Surround yourself with friends who support you and lift you up. Don't give into depression.
Take care of yourself.