How can you be sure you're not a narcissist?

Narcissists don’t have any genuine affection or consideration for other people. They use people to get what they want. Relationships that they abandon until they find something better or they cheat the entire time because they don’t take the person or relationship seriously. Narcissists are often abusive can be mentally and physically because they get something out of it (their needs Being met, housing, money) they do not care about how their abusive behavior and manipulative behavior affects others because they lack empathy. They have an inaccurate inflated sense of self worth. They overestimate their skills and abilities. They can be very vindictive

Narcissistic personality disorder is most common in the United States