Many people, including native speakers, often use these pronouns incorrectly. ‘I’ is a subject pronoun. A subject is the person/thing doing an action. I like her. ‘Me’ is an object pronoun. An object is the person/thing being acted on. She likes me. ‘Myself’ is a reflexive pronoun. It is used in a sentence when ‘I’ is the subject and we want to refer back to it. I consider myself a very lucky man.