How can I (a neurotypical individual) ensure that I’m diagnosed with autism so I can reap the benefits from the Department of Rehabilitation?

One of my buddies has autism and the DOR will buy him new clothes for interviews and they’ve bought him a new laptop before. I’m a pretty neurotypical guy myself, but I like free shit from time to time. How can I go about getting an autism diagnosis? Do I gotta go to an actual doctor or a psychiatrist? What are some things I can say or do to make sure I get the diagnosis I want?