Как поддержать подростка?

A family member close to me who is 17 yrs old lost their boyfriend also 17 yrs old in a car accident the other day. He caught a ride with his friends instead of taking the bus home. It was raining out and the car he was in got hit from the back and spun out of control and under an 18 wheeler. He passed away at the scene. They lived together and that morning she was upset with him so didn’t tell him goodbye. When she was calling and texting him after school he wasn’t answering. Everyone had heard about this accident and to avoid the street and when he wasn’t answering, she checked his location and seen it was the same location as the accident. Her mom went to the scene and identified him. I feel so sad for her and of course his family and friends. We are worried about her because she use to cut herself and now we are worried she may hurt herself because she says she doesn’t want to live. I’ve been reaching out to her and telling her I love her and i’m here for her. What are some things I can do to let her know she is loved and her life matters? I can’t imagine having to endure this pain and especially at such a young age.