The findings of a study conducted on weightlifters between the ages of 15 and 16 at the EIDE "Captain Orestes Acosta" in Santiago de Cuba are compiled in this paper. From the application of methods and techniques to training and competitions, such as observations, semi-structured interviews with athletes and coaches, the Inventory of Psychological Performance, the Attitude Test for Competition, the Inventory of Evaluation of Error in Performance, and others; It was discovered that these athletes failed to successfully complete the lifts, resulting in a high level of tension, insecurity, and nervousness, among other negative psychological manifestations that harmed the athlete's performance and were connected to irrational or maladaptive beliefs and thoughts. An action plan was put into place with the help of the psychologist, coaches, athletes, and family members to help solve this problem. It was an open, adaptable, active, practical, and experiential group. The cognitive restructuring of dysfunctional ideas and thoughts that prevent adequate sports performance demonstrated its effectiveness.

Competitions, apprehension about disappointment, psychological;

Bedoya, C., & Velásquez, A. (2014). Analysis of the Incidence of Fear in the Organization From the Psychobiological Perspective. Colombian Journal of Psychology, 23 (2), 351-362. Retrieved on August 2, 2018.http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0121- 54692014000200009&lng=en&tlng=en.

David, D., Jay, S., & Ellis, A. (2010). Rational and irrational beliefs. Research, theory, and clinical practice.

Published by Oxford University Press, Inc.

Dominguez, L. (2003). Developmental psychology: adolescence and youth. Selection of readings. Havana: Editorial Felix Varela

Dosil, J. (2004). Psychology of physical activity and sport. Madrid: Mc Graw Hill

García, F. (2001). Emotions as a result of training loads. http://www.efdeportes.com/ Digital Magazine - Buenos Aires - Year 7 - N ° 41 - October 2001

García, F. (2004). Psychological tools for coaches and athletes. Editorial Sports.

González, L. (2004). The emotional response of the athlete: a scientific vision of behavior in the face of the competitive challenge. Havana city. Editorial Sports.

Iriani, D. H., Syahdan, -, & Nuriadi, -. (2018). The effect of early English learning on psychology. International Journal of Social Sciences and Humanities, 2(1), 65-74. https://doi.org/10.29332/ijssh.v2n1.82

Moreno, J., Conte, L., Silveira, Y., & Ruiz, L. (2014). Fear of failing in sport. Notebooks of Sports Psychology, vol. 15, 3,2014.http://scielo.isciii.es/pdf/cpd/v15n3/32_recension2.pdf

Pérez, Y. (2007) Psychological guidance program to stimulate emotional self-control in high performance chess players. Thesis in option to the scientific degree of Doctor of Science of Physical Culture and Sport, UCCFD "Manuel Fajardo"

Sánchez, D. (2017). Psychological actions for the control of negative emotions in the basketball players of the Team, "Capitalinos", 1st Category Master's Thesis, University of Physical Culture and Sports Sciences Manuel Fajardo, Havana, Cuba.

Silveira, Y. & Moreno, J. (2015). Fear of being wrong and self-determined motivation in teenage students. Notebooks of Sports Psychology, 15 (3), 65-74. Retrieved on August 2, 2018 from, https://dx.doi.org/10.4321/S1578-84232015000300006

Singh, A., & Parmar, D. S. (2016). A comparative study of psychological factor among female athletes. International Research Journal of Engineering, IT & Scientific Research, 2(1), 8-21.

Vígara, D. (2017). Fear of failing in competitive sport https://www.upadpsicologiacoaching.com/ el-fear-to- fail-in-sport /