First, depends on the country you're in. If you're in Eastern Europe or some 3rd world shithole, sorry you're fucked.
If you're in the US, get diagnosed with something that qualifies you for bux. Autism, schizophrenia, some chronic condition. The thing is you can't fake it. You need to be legit broken. Psychs are not stupid, and they're trained to catch fakes.
Yes, if you declare yourself as suicidal, you will be admitted to a mental hospital and this will help you get a diagnosis and especially with future neetbux. But if you don't qualify as mentally fucked, this can ruin you financially.