That isn’t what gaslighting means. The term refers to a type of psychological abuse involving the denial of a person’s own reality as a means of gaining power and control of a victim. It is not simply suggestion.
Sort of fits. The person self gaslighting is both the manipulator and victim. The person is trying to gain control over themselves and is denying reality.
Oh I'm aware, but meme is funny so me post! Although it's not used correctly here, I think it gets the point across succinctly. And don't worry, everything is fine! FINE!