This is my first time on a forum. My daughter is 27 and I am sure she is using drugs but I do not know what kind. My son is 34 and has bee addicted to heroin for probably 10 years. He lives on the street with his girlfriend. I can barely handle the thought so losing another child to drugs. I have threatened to kick her out but basically gave in hoping the threat would make her realize she needs help. I am seeking advice on how to handle this. Please help.