The article presents a research on comparative study of two trainings of personal growth in senior schoolchildren. The first is based on the use of art therapy and psycho-technical exercises, the second are only psycho-technical exercises. It is shown that the first training is more effective. The second one contributes to the appearance or growth of rigidity and self-satisfaction, and it can be an obstacle in the way of personality growth. In trainings with the use of art therapy techniques this negative effect does not occur.