This study is the data collection across 4 waves of the LOLYS (Longitudinal Lausanne Youth Study) at the University of Lausanne. The general aim of LOLYS is to assess experiences of vulnerability (e.g., stress, discrimination) and regulation strategies (e.g., identity, social support, collective action) of young adults aged 15 to 30 years living in French-speaking Switzerland. Generally, the survey aspires to provide an account of the regulatory strategies likely to decrease or to increase vulnerability among adolescents and young adults aged 16 to 30 years. In this study, we address the multiple mid- and long-term projects of these young adults as an indicator of their planned life course and aims in life. In addition we investigate identity self-definition strategies, as well as experiences of injustice, vulnerability, self-esteem, efficacy and well-being as well as attitudes towards social change.