Internal evaluation is inextricably linked to increasing the efficiency of a school unit. The collection and evaluation of data on the performance of the school unit, the school class, and student potential is critical to increasing the effectiveness of a school structure. The purpose of this study is to determine how significantly a school's efficiency increases at all levels of its organizational structure when self-evaluation is used. According to the study's findings, the implementation of assessment within the context of the school classroom, lesson preparation, proper utilization of teaching time, and the use of alternative and innovative methods appear to have a direct impact on learning outcomes. Furthermore, feedback obtained through assessment aids in the improvement of learning performance and the design of lessons aimed at developing students' critical thinking, digital and soft skills.