Hi @Angela5,
I am so sorry to hear that you are feeling concerned for your loved ones. Both you and your brother have healthcare rights that might be able to help in this situation.
When seeking mental health care, your brother has a right to seek a second opinion, or to make a complaint. You can also make a complaint as his carer, and you both have a right for that complaint to be addressed without it effecting his care.
Have you heard the the Mental Health Advocacy Service (aka legal aid) before? I have linked to NSW, but there is legal aid for each state. They might be able to talk through your situation and offer more specific support based on the state you are in and the local Mental Health Act. That being said, reaching out for help if you are concerned, is a really important step- I can hear how concerned you are for your brother and he is lucky to have an advocate such as you by his side!
How does your brother feel about the mental health care he is receiving?