If mental issues are the reason that someone doesn’t want to date you then what are you supposed to do?

I am 20 years old have been in a few relationships that have mostly ended not that well but after my girlfriend broke up with me last year I haven’t been in a relationship with anyone else. I have been called a narcissist and manipulative and things like that and while I disagree it does bring up a good point because according to the people who use the word narcissist it’s a mental disorder and people have also told me I seem like I have borderline personality disorder or antisocial personality disorder but in reality I would say I’m pretty charismatic and the thing is that when I talk to people on a surface level you can’t even see any bad traits so I don’t know how that would put someone off.

I don’t have any of those things wrong with me but I have had psychosis which again no one knows about unless I mention it so why would I and I also have a brain injury from a car crash which just makes my memory bad and maybe I’m slightly slow. Other than than I am in college currently, I live with my parents and I was a D1. I don’t have a job but I don’t struggle financially because my parents still support me and I don’t have any close friends.

So the option is to either lie or be honest and have no one like you. Even though technically it’s not lying to not mention but if everyone was honest about themselves no one would want to date anyone so really I would say you can’t trust anyone anyway. But my main point is that mental things are not something you can change so I don’t get what calling someone a narcissist achieves because even if they are it’s not something a person can change