Change of educational and living environment is the most significant change in the life of the first-semester students. There are negative tendencies found in several researches carried out in Latvia, Lithuania, the USA, Russia, they are related to well-being, mental and physical health of the first-semester students. The authors of the research continue their study of interrelation of hardiness and other psychological issues, which was started in 2012 within the selection of the first-semester students, assessing correlation of hardiness, mindfulness, and reflexivity. There were 64 first-semester students of Latvia University of Agriculture taking part in the research. Statistically significant positive correlation of the results of the mindfulness and commitment subscales was found in the research, as well as statistically significant negative correlation between the results of reflexivity and the hardiness scale was found. The obtained results confirm the statements of the theoretical studies on interrelation between mindfulness and psychological well-being, and reveal contradictions between reflection as an integral formation of the psyche and hardiness as a belief system involving active external activities.