This web site is a collection of resources that will give you the information you will need to minister to hurting people. But knowledge alone is not enough. A mature relationship with the Lord is essential as well as the opportunity to shadow someone experienced in helping the wounded.
Alexander Pope was right when he said "A little learning is a dangerous thing." I have worked with many people who have been damaged by well meaning but uninformed Christians. God has made a lot of information available to us. We can cause harm when we do not take advantage of those resources.
Work through as many of the basic level resources in all the sections as you are able as well as spending some time shadowing established counselors and pastors before you begin helping on your own.