This report provides a nursing student's reflection on a mental health assessment, specifically focusing on a case study of a patient named Alison suffering from depression. The student analyzes the Mental State Examination (MSE), conducted by a GP, highlighting key observations such as Alison's appearance, behavior, speech, thought process, and mood. The report details the diagnostic process using DSM-5 criteria, identifying major depression, and outlines a recovery-oriented treatment plan. The student emphasizes the importance of addressing Alison's financial stressors and self-harm thoughts, building a therapeutic relationship, and incorporating social workers in the care plan. The reflection discusses the benefits of MSE in diagnosis and treatment planning, highlighting the role of clinical reasoning cycle (CRC) and the need for future patient assessments. The student also references relevant literature to support the analysis and conclusions.