<p>Children experiencing homelessness in urban environments face a range of traumatic events that leave enduring impacts on their mental health, hindering the effectiveness of programs designed to support their improvement. It is essential to establish supportive strategies and cultivate a nurturing social environment focused on these children to ensure their overall well-being and promote their mental health development. This study explores the traumatic experiences faced by homeless children living on the streets of Kinshasa, highlighting the effects of such experiences on their mental health and outlining strategies to improve their overall well-being. The study involved a cohort of 16 children, aged 10 to 17 years, who have been livng on the streets for over six months and are participants in a structured friendly center program. Data collection via depth phenomenological interviews. Free drawing was used as a starting point for the interview. The findings revealed a troubling incidence of sexual and physical abuse, rape, exploitation, arbitrary detention, loss, and abduction among children in street environments, leading to signs of anxiety and depression. The “<i>heptagonal approach</i>” which includes seven essential dimensions—proximity, prevention, protection, support, participation, partnership, and promotion—emerged as a significant result. Our findings highlight the critical need to move beyond immediate relief efforts towards ongoing support systems, specifically designed to meet the unique challenges and needs of each child. The study’s innovation is significant not only in detailing the challenges faced by these children but also in elevating their voices and presenting the heptagonal approach as a framework designed to provide various stakeholders with the essential tools to offer effective and lasting support, promote mental well-being, and enhance the welfare of these at-risk children.</p>