@Ehmelle Hello, I really feel for you. Your first port of call is any local authority dealing with mental health. I'm in my mid fifties and finally am getting help through the State Administration Tribunal. From here my family will finally (not be forced to ) have to face facts about our mentally ill parents. It all came down to money in the end, misappropriation of funds, not attending to our parents best interests. For years I struggled to find help, but my parents would be too ashamed to admit to mental health or needing help, and my siblings are the same. Years of strange, destructive behaviour has taken its toll on all of us. Keep,trying with all the groups that help, if your GP isn't effective get another, you ask the right questions, but you can't force people to do what's best for them. In my case I have literally reported my family, no one is happy with me or what I'm doing but I know it's the right thing to do, allowing people to indulge in destructive unhealthy behaviour is wrong, I watched members of my family deteriorate through indulgence. "Don't rock the boat, anything for peace and quiet". This is an unbalanced life after growing up with madness it's hard to be comfortable with sanity, you have to grow out of it.
Although you present calm and very balanced, have you always had to be the responsible one?
Im sure there are support groups in Melbourne and this website is a good place to start, I wish you good luck