I am sorry for what you are going through. Please take their suggestions and get some professional help. Sometimes family members feel there is no more that they can do. I know when my mom had had enough of my using chaos I was cut off from the family and let me tell you it was the best thing that she could have ever done for me. It forced me to hit my lowest point in my life and I got help for myself.
Please get professional help.
And keep posting, we are here and we do care.