My Little Sister is Suicidal

Hello,

I want some advice going forward. I’m 18+ and today my little sister admitted that she has done some minor self harm and is suicidal. Please read this whole post if you can offer advice in any capacity it would be greatly appreciated.

Today my 13 year old little sister was called down after getting her state test results to which she basically failed it. She said she didn’t even try and my mother got very angry with this response. The argument got really big and a lot of yelling happend, with her eventually admitting she doesn’t care about anything at all. I then sent my parents to other rooms to chat with her privately which still didint go the best but was better than before. I asked her what the problem was and she admitted that she hated life and didint see a point in living and that she didint care if she died, she has suicidal thoughts, and has even cut herself however none of it has left any permanent mark. I kept taking to her and she admitted that she has had friends who have done similar things and that she has had to convice some friends who have been wanting to do it as well to not. During this whole ordeal she was yelling and she kept saying she hated us and we would never change. She said she has had these thoughts for a year now. Some main reasons include my mom being a bit more hard on her and my mom yelling at her a bit in a couple fights they have had and when she hears my parents fight. By no means do we live in a bad household at all and I grew up knowing these fights were normal amongst couples and I knew when my mom yelled at me she didint mean the stuff. My mom did notice she became distant when 7th grade started however I went college however I did notice the communication stopped as well. As we kept talking I eventually brought my mom back into the convo where she kept saying phrases like: I hate you, I’ll never change, I’m going to move away and never talk to you guys again at 18, I don’t love you, I don’t care if you love me, I don’t want your love, your disgusting and your thoughts are disgusting, I’ll just kill my self one day, I don’t care if you love me, I’ll never love you no matter what, and more along these lines. We assured her many times we love and care for her but she seems to not want to hear it. She took a bath and went to sleep now but she still said the same stuff. When my mom and me tried confirming her still she laughed in our face and said she didint care. What should we do going forward to ensure that she is health mentally and doesn’t have these thoughts anymore and will allow us to love her and care for her. I really don’t know what to do to help. Therapy could be possible but we are not the best financially rn either and if possible I would life to avoid it. We mentioned it to her and she said she wouldn’t even say anything to the therapist and there’s no point because she won’t change. If anyone has advice I would greatly appreciate it. Sorry for the long post I’m just lost.