In a gloomy social and economic context marked by high levels of unemployment and growing social inequality on the one hand, and faced with the challenges of climate change and the degradation of ecosystems on the other, more and more people, especially young people, are losing confidence in collective and civic action and in the ability of our societies to embody the values of solidarity and justice on which they are founded. Their lack of prospects feeds a feeling of powerlessness and often results in people turning in on themselves or rejecting others, which not only undermines social cohesion but also our ability to meet the many challenges facing our societies. To address these issues, we have launched two initiatives: The HANDS-ON! project aimed to raise awareness of innovative collective projects that are economically viable, socially just and respectful of ecosystems, and to demonstrate that other ways of doing business, of acting and of living together are possible, through which we can ensure both the fulfilment of each individual within society and the sustainable development of our territories. The aim was to disseminate the knowledge, know-how and interpersonal skills acquired by those who implement these projects, so that a growing number of people can regain confidence in the future and in their ability to act, and draw inspiration from their experiences to take action or develop the collective projects in which they are involved. To achieve this, we brought together 30 social workers and youth and popular education workers from Greece, Italy and France for a 15-day training course in the Occitanie region, focusing on social innovation, ecology and collective action. The aim of the course was to enhance participants' knowledge of social and ecological transition, develop their professional skills and foster their personal development. The aim of the DYNAMIX training course was to provide youth workers with the methods and tools they need to provide effective support to young people as they learn to live and work together, and/or to respond to requests from social utility project leaders looking for support and practical tools. The aim was to increase participants' knowledge of the issues that run through collective projects and to develop their skills in collective project engineering and group facilitation, so that they can improve their own projects and develop their support offer for young people and for social utility project leaders. The aim was to give participants a better understanding of how a group works and to equip them with the methods and tools that contribute to positive group dynamics and facilitate participation by all, the debate of ideas, the exchange of experience, the easing of tensions and collective decision-making. In practice, we brought together 30 youth and popular education workers from Greece, Spain, Germany, Estonia and France for a 7-day immersion course at Fayssac in the Tarn region of France. Our aim was to strengthen their professional skills so that they could become more relevant, effective and creative in their work, and to create the right conditions for the development of interpersonal skills that are crucial to the implementation of a collective project and to supporting people in their career paths and initiatives. We also sought to contribute to their personal development, a source of motivation in their day-to-day work, and to the expansion of their networks at European level. The aim of these actions for these youth workers is to acquire methods that will enable them to develop the capacity to act of the people they support (including many young people, people in integration, unemployed people or people undergoing vocational retraining, as well as many project leaders looking for methods and tools to develop their initiatives), and also to get people more involved in socially useful projects in their local area and the emergence of new collective social innovation projects in the regions. It also aimed to promote diversity, intercultural dialogue and the values of justice, freedom, solidarity and respect for human rights and the environment, and to strengthen the networks of players involved in the social and ecological transition in Europe.