Uncle Remus guide for starters.
One thing you must obtain first is a diagnosis qualifying you for SSI, with proof from at least a psychologist that will confirm your disability. You can apply for SSI and go through their doctor for a half-ass 5 minute meeting, but this will almost certainly fail.
If you get diagnosed with something like autism spectrum, schizo, bipolar... you're well on your way. If it's a token thing that they'll diagnose like depression, anxiety, etc... which they throw on everyone that bothers them, you're probably out of luck.
Then you need to prove that you can't wageslave, at least in the short-term. As for myself, the autism diagnosis pretty much wrapped this up. This is where having stays in a mental hospital can help, as you'll prove you're crazy. Maybe even some legal trouble, although I'd be careful with that. Your actual work history is insignificant, you need actual doctors saying you're a fuckup. Not counselor, therapists, social workers... all those assholes are irrelevant. Doctors, PhDs, the big shots are all that matter, just like all forms of life.
If you think you're going to pull one over on these doctors, don't do it. They all know the game. They have niggers bothering them every day trying to get more bux. You're on incels.co, you probably have legit mental problems. Just b urself bro.
Odds are even if you do everything right, you'll be rejected on your first SSI application. This is not a death sentence, it's just how the stupid process works, trying to get people to quit. File an appeal, they work a lot of times. Some say disability lawyers help, get one if you want. I was lucky enough to get accepted right away, but I am an enormously autistic pile of shit that needs it.
I've posted about this many times before, search my shit.