Everyone who strives to live life to the fullest, achieve success in society, and most importantly, feel the joy of life, must be able to manage themselves, withstand circumstances, and change themselves if necessary. Broad and deep knowledge is not only a condition for high professional qualifications, but also the most important resource, which, unlike natural raw materials, is not exhausted, but is multiplied.

The textbook is intended, first of all, for students as higher, and secondary specialized educational institutions, as well as students of various advanced training and advanced training courses for specialists and, of course, all those who want to improve their lives, their professional viability and health through the ability to influence their emotions, self-awareness, through the ability to “stand” in difficult life situations.