You should add that to your post.

Oh you probably shouldn't take most of these comments seriously, most Fediverse users are from North America or Europe, I don't know about Brazil's Human Rights, so you might wanna ask local groupchat/forum or something.

Just an example:

I'm in the US, there are supposedly a lot of legal protections when it comes to patient's rights.

But, back in China where I was born in... the culture is very conservative and if I was ever involuntarily held there, I could be possibly be held indefinitely. They don't treat people mental illness very kindly. The legal system just reflects on the society's conservative attitude. I heard horror stories of my village just locking up a kid in their house because they view that kid as a danger.

I'm not saying that such hospitals can't help you, but you might wanna be careful. How Progressive/Conservative are the people? If they are very conservative, I'd try to avoid it as much as possible, seek legal help maybe.