Depression Sadness of mood is usually associated with pessimism, which can result in three common types of depressive ideas. Hopelessness (there is no hope in the future). Helplessness (no help is possible now). Worthlessness (feeling of inadequacy and inferiority).The ideas of worthlessness can lead to self reproach and guilt-feelings. Difficulty In Thinking. Difficulty In Concentration. Indecisiveness.