Requirements set by faculty and faculty environment are often larger than the current capacity for adequate coping which can lead to stages of mental tension and discomfort among students. Failing a year in college, in this case considered through the prism of failure, can leave disastrous consequences on the self-image and among other things can affect stress and self-efficacy among students. The main goal of the research was to examine whether there was a difference in level of stress and self-efficacy, and in the perception of academic success between students who complete student obligations on time and students who repeat the year. In accordance with theoretical starting point, it was assumed that students who repeat the year will have a higher level of stress, while students who fulfil their study obligations within the prescribed period will have a higher level of self-efficacy and higher perception of success. The research, which was conducted using the online survey method, involved students of the first three years of integrated and undergraduate university studies in the Republic of Croatia who, in order to answer the research question, were divided into two groups: 1) students who have passed the previous academic year within the stipulated period and 2) students who repeat the year at the time of the examination or have repeated the academic year in the past. For the purpose of the research, the following were used: general data questionnaire, Scale of general self-efficacy (Ivanov, 2002), Scale of perceived stress (Cohen et al., 1983) and one particle which measured their perception of success. Totally 338 respondents participated, 104 of which were those who repeated at the time or had previously repeated the year and 234 who had never repeated the year. Although no difference was found between repeaters and non-repeaters in the stress level and self-efficacy level, results of the research show that students who repeat the year are perceived as less academically successful compared to students who do not repeat the year. In addition, results of the research show that there is a positive correlation between perception of success and self-efficacy level as well as a negative correlation between perception of success and stress level.