I don’t know who needs to hear this, but…
If someone in your life is struggling with addiction and nothing you or anyone else is doing is getting through to them, it’s okay to cut that person out of your life. Doesn’t matter if it’s a friend or family member, you need to understand that you can’t help someone that doesn’t want to be helped.
I know it’s hard. I know it sucks. Even so, for your own mental, financial, and physical wellbeing it’s something you need to be willing to do. You can always help that person if/when they’re truly ready and willing to ask for it, but until then? Let them go.