Hi, can someone please tell me where I can legally get an euthanasia appointment for having diagnosed ADHD and undiagnosed autism?

I know it's better to get support than to end my life but there is no support anywhere. I have tried to get support in my home country Australia but there's no accommodations for somebody like me, and I have faced a lot of violence from the justice system there and I am scared to return.

My ADHD/ autism has ruined my life. I'm living off savings overseas and am trying really hard to find a job but it's not possible, I'm too disabled. I will keep trying until I run out of money. But after that I don't know what I will do. I don't want to die but I don't think there's any other choice. But I don't want to have to kill myself on my own when the time comes. Please, I really want the chance to die with dignity if I do not have the means to support myself anymore. I need to plan in advance to know how much money I need for getting euthanasia.

Please someone can you tell me what the steps are? I really have tried to find support but there isn't any that I can find to support myself so I don't have a choice and I really don't want to have to kill myself on my own.