This report presents a comprehensive case study analysis of Lisa, focusing on her problematic substance abuse as presented in a video. The study identifies three key issues contributing to her condition: loneliness, family conflicts, and pre-existing mental illness. It explores these issues through the lens of trauma-informed care principles, emphasizing safety, collaboration, and choice. The report discusses the importance of a multidisciplinary approach, highlighting the roles of various mental health professionals, including psychiatrist nurses, clinical psychologists, social worker nurses, and therapist nurses, in Lisa's recovery. It emphasizes the application of trauma-informed care throughout the nursing process to ensure a supportive and effective approach. Furthermore, the report details how these issues should inform the mental health nurse's collaboration with Lisa to achieve her personal recovery, emphasizing the significance of trust, shared decision-making, and addressing the underlying causes of her substance abuse. The report also critically examines the application of trauma-informed care principles in engaging with Lisa, ensuring a safe and empowering environment for her recovery journey. The case study underscores the complexity of mental health issues and the need for holistic, patient-centered care.