This project is expected to have a significant impact across multiple domains: scientific research, clinical practice, and policy-making. By creating an accessible knowledge platform, it will enhance our understanding of mental health and illness trajectories during critical developmental stages. The project will also contribute to the development of robust prediction tools for early intervention, enabling improved healthcare for young people. Ultimately, this work aims to reduce suffering, disability, and the socioeconomic consequences of mental health disorders, fostering a healthier and more resilient society.