This report delves into the critical aspects of mental health nursing in Australia. It begins by examining the incidence of depression and suicide rates, highlighting the prevalence of these issues within the Australian population and identifying at-risk communities, including Aboriginal and Torres Strait Islander peoples and young adults. The report then analyzes a case study involving a patient named Jonathon, exploring factors contributing to his mental health risks, such as the loss of his mother and strained relationships. It emphasizes the ethical and legal considerations within mental health care, focusing on the importance of beneficence, non-maleficence, and patient autonomy. Furthermore, the report prioritizes urgent mental health risks, particularly the immediate effects of a suicidal attempt, and outlines nursing interventions to safeguard the patient, including assessing suicidal levels and promoting social interaction. Finally, it suggests therapeutic interventions like Interpersonal Therapy (IPT) and Acceptance and Commitment Therapy (ACT) to address depression and improve the patient's mental well-being. The report provides comprehensive insights into the challenges and interventions related to mental health nursing in the Australian context.