If you look underneath depression you will find anger. Look under anger, and you will discover sadness. Analyze sadness and you will find the root of all that is masquerading for depression—fear!
It is impossible to think clearly when you are flooded with fear, anxiety, or negative thinking. The more you are anxious or negative, the more such thinking will be reinforced. Do it often enough and it can become a habit. So, when anxiety, fear, or negativity arouses you, immediately redirect your thinking by getting involved with some other thought or engage in a new activity. This is the most effective and efficient approach. The reason is that emotion always follows cognition.