Am I a Narcissist?

I am so scared that I might be a narcissist. My ex compared me to someone who he said was one during our breakup and that was 3 yrs ago. since that day all I do is read about it, go through all my mistakes, try to be better person. I dont know what to do, I am terrified. Am I a bad person? I dont know what do. I asked people but they said no, but idk anymore. 30f