Are you self-diagnosed or clinically diagnosed?
I'm self diagnosed. started suspecting when I was 19. went down a rabbit hole and everything just made sense. it was like reading someone's observations of me. it mentioned a lot of things I did when I was a kid, and looking back, I was definitely different from other kids. Tried different therapists, but all I got was nonsense.
You cannot be autistic because autism is for children.
You cannot be autistic because you have a job (I was fired from jobs before and only have my current job because it is remote with minimum interaction)
You cannot be autistic as you don't look autistic/disabled.