The heathen world (including secular psychology) doesn't recognize sin as the core culprit of humanity's problems and failures. Secular psychologists won't ever tell you the truth that your mental problems are likely caused by your unwillingness to receive Jesus Christ as your personal savior, and that living in rebellion against the inspired Holy Bible will ruin your life. Psalms 9:17, “The wicked shall be turned into hell, and all the nations that forget God.” A non-Christian counselor forgets God. He or she legally is not even allowed to counsel you on the basis of Scriptural teachings. If they did, they could lose their professional license as a psychologist, and risk rejection and scorn from heathen peers.
The Holy Bible teaches that in many cases God wants us to suffer. Yes, you read right (1st Peter 1:7-9). Suffering helps to conform us more into the image of Christ. The Apostle Paul teaches us as believers to rejoice in our afflictions, health problems and hardships, because when we are weak we are strong in Christ (2nd Corinthians 12:9-10). This is the exact opposite of what the foolish world teaches! The world teaches the foolish idea popularize by Charles Darwin in the 19th century that only the strong survive. But the Bible teaches that only the weak survive in Christ. God will use a proud Christian (James 4:6). Secular psychology won't tell you the truth that suffering is meaningful and even necessary for Christian growth.
Whereas the heathen world tells us to believe in our self, the inspired Holy Bible commands us instead to trust in God (Mark 11:22). Secular psychology won't tell you the importance of forgiving others on the basis that God forgives those who trust in His only begotten Son (Ephesians 4:32). Since all my sins have been forgiven by faith alone in Jesus Christ, I am commanded by God to forgive others. To refuse to forgive those people who have hurt us in the past may cause mental depression, frustration and anger issues. The inspired Word of God contains the answers to life's problems. Secular psychology fails to recognize the reality of sin, which is the core of man's miseries. In sharp contrast, the Holy Bible identifies the origin of sin in the Garden of Eden (Romans 5:12), and identifies the remedy for sin through faith in Jesus Christ (Romans 5:1).