This report presents a comprehensive mental health assessment and intervention plan for Andy, a 21-year-old patient exhibiting signs of mental illness. The assessment, based on a case study, details Andy's history, mental state examination, and risk assessment, leading to a provisional diagnosis of schizophrenia. The report utilizes the DSM-5 criteria to support the diagnosis, highlighting symptoms such as auditory and somatic hallucinations, delusions, and thought insertion. Furthermore, the report outlines a detailed care plan, including medical interventions with antipsychotic drugs, psychosocial interventions like cognitive behavior therapy and psychoeducation, and nursing interventions focusing on therapeutic relationships and patient support. The report emphasizes the importance of a holistic approach to patient care, considering both medical and psychosocial aspects to improve Andy's well-being. The student has provided a comprehensive evaluation and care strategy for the patient.