Thanks so much for your question.  It makes total sense that you and your family are concerned about your younger sister and want to support her!  It is important to take the self-harm and suicide seriously and to always make sure that a trusted adult is aware if you or someone you know is thinking about these things.  Your family might consider talking with your sister’s doctor or her school to help connect her with appropriate supports.  As these topics can feel stressful or scary, make sure you’re taking care of yourself.  Consider talking with family, a trusted adult, or counselor about how you’re feeling.  You can also contact the National Suicide Prevention Lifeline (1-800-273-8255) and Crisis Text Line (text “HOME” to 741-741) for support.