Inability to assert oneself, difficulties in looking for a job or second half, dread of present and fear for the future, doubts in the knowledge or popularity - here some of the consequences related to absence of confidence in itself. This sense is acquainted many people. How to get rid from uncertainty and feel comfortably in any circumstances? Leaning against the experiments conducted in laboratories experimental to psychology, and on the clinical practice, an author breaks some generally accepted ideas and directs to the best understanding of our reactions and search of harmony.A publishing layout is stored in the format of PDF A4.