I thought I'd outline some of my experiences with getting disability, it might help you in some ways even though I live in a different country.
I was diagnosed by a large specialist autism diagnostic centre, I did that off my own bat, just walked in and asked for a diagnosis. The wait list took twelve months but when I got in it all happened in one afternoon. I was interviewed face to face and tested for three and a half hours by a panel of three professionals in psychological and behavioural fields, and afterwards I waited around for fourty five monutes while they wrote up their report.
At this stage I had been claiming unemployment benefits for twelve years, I haven't worked since 2008. Part of the rules for unemployment (the dole) require us to be registered with an unemployment agency and to apply for a certain number of jobs per month, I never applied for that many, I just got good at lying on forms.
Once I had an official diagnosis I was allowed to switch to an unemployment agency that specialised in finding jobs for people with disabilities. During my initial interview there I told them straight out that I had no intention of ever joining the workforce again and I wanted them to help me get on the pension.
They arranged another interview for me with one of their staff who was also autistic, and she was fantastic. She had spent twenty years working for social security before she burnt out and she knew the system inside out. The diagnosis I had was perfect, it ticked all the necessary boxes. She outlined them for me.
Firstly, I was diagnosed by AutismSA, a recognised authority on all things autistic so my diagnosis would be accepted without question. If I had gone to an individual psychologist for a diagnosis it was likely that social security would send me for a second opinion.
The way the diagnostic report was worded was important and there was nothing vague in mine. They listed six key areas of testing, what tests they used and what my responses were. Then they listed their assessment of my responses, and on one line all by itself at the bottom of each of those sections it clearly states:
ASD2. Andrew is a person in need of substantial support.
The lady in the unemployment agency also downloaded all the specific forms that I needed for social security and she filled them all out for me. The only other thing I needed was a report from a general practitioner, she also downloaded and printed several copies of the specific form she wanted them to fill out and explained to me exactly how she wanted them to fill it out. The most important was that they tick a box for "Life long condition, no treatment possible". She gave me several copies of that form because she knew I'd have a hard time finding a doctor that would tick that box for me. She was right, it took three tries.
The reason I needed that box ticked is because without it my eligibility for disability would have to be reviewed every three months, I'd have to resubmit my applications again and again. With that box ticked I never get questioned again, never have to submit to any reviews, I just keep getting paid with no hassle.
Once I had all the forms filled out correctly along with copies of my diagnosis she put them all in the right order, put them all in a big envelope and posted them for me. This lady was the greatest, it would have taken me years of frustration and getting the run around to get on the pension without her.
A couple of months after that a psychologist working at social security interviewed me over the phone for 45 minutes. I didn't hear anything back from them about that interview, but about two months later I was put on a full pension for life.
So my honest best advice is to find someone who knows your social security systems inside out and see if you can get them to help you. If it's anything like ours it's not easy for the average mug in the street to navigate their way through it.