The accelerating pace of life, various global problems such as Covid-19, the war in Ukraine and other reasons have strongly contributed to the deterioration of the mental health of young people. According to global health data, 14% of young people aged 10-19 experience various mental health difficulties and disorders, such as stress, anxiety, depression. Let’s talk is an international project involving such partner countries as Lithuania, Estonia, Sweden, Bulgaria and Cyprus, which have focused on a common goal and expressed concern for the mental health and well-being of young people. The aim of the project is to effectively improve the mental health of young people, strengthen and carry out prevention and intervention. To that end, the partner countries conducted surveys in their countries in order to find out what knowledge young people have about mental health and well-being, how they are able to recognize one or another difficulty, whether they and their relatives have or had difficulties, problems related to mental health, and what kind of help they need. In Lithuania, more than 30 young people from Marijampolė participated in the survey. The results will be used in the development of new methodological tools, recommendations for those working with young people, who carry out prevention and intervention, and who can strengthen the mental health and well-being of young people.