Hi @Kj21
Welcome to the Forum..
I'm so sorry you are going through all that. It is so heartbreaking when you've given so much of your life raising someone and they cut you out like that. However it is not uncommon for kids your daughters age to distance themselves from their parents for a while.
It appears as if your daughter might be telling you that she wants to take responsibility for her issues, and that is a promising sign. While that goes against your instinct as a Mum who naturally wants to fix the situation, it is good that she seems to recognise that ultimately she is the one who needs to learn to manage her mental health issues. Hopefully one day soon she will allow you to support her again.
Having said this, one of the things you can do is keep on trying to keep her alive to the best of your ability. It may be helpful to call one of the suicide helplines about how to manage her suicidal behaviour. The helplines are available to all affected family, partners and friends.
https://www.suicidecallbackservice.org.au/
If you are ever in doubt about her safety, please call 000 immediately.
That is a huge load you are carrying. I hope you are finding time for yourself, taking time out and looking after your self care. One of the things you can control is doing things that help you to cope and looking after yourself as best you can.
I hope that you will find the forums to be a supportive place for exploring all these issues. Just a tip, if you are replying to someone or wanting to notify or touch base with someone, place an @ before their username, as in @Kj21
All the best
Joe The Lion