I'm going to refuse to talk to my mother
Why aren't you going to talk to her anymore?
Everyone else keeps trying but she never listens.
While you can do whatever you want, it doesn't mean that it's the right thing to do. She is still your mother, and it's selfish to abandon her during her hard times when she can't open up to anyone. You need to be patient and wait for her to finally speak again.
Thanks for the advice, if I don't say anything she'll talk to me again.
That's great. If you think she might need more serious help you could recommend a therapist if you believe she could be receptive. Her issues might stem from not wanting other people to spill her secrets.