Mi vs. Mio/Mia

Hey, sometimes I'm unsure whether or to use "mi" or "mio (I'm a guy)". I thought that mi=I and mio=my, but i've heard mi being used as my as well (for example "Mi ragazzo, my girlfriend). Any clarification on this?

Hi Dario, Mi can be a direct object pronoun meaning me. Mi can be an indirect object pronoun meaning to me. Io is a subject pronoun meaning I. Example of mi as a direct object pronoun: Mi ami? Do you love me? Example of mi as an indirect pronoun: Mi dai il tuo numero di telefono? Can you give me your phone number? Mio and Mia are possessives. Possessives are adjectives that indicate ownership of, or relationship to something or someone. Like all other adjectives, they modify nouns. Example of Mio: Mio marito è architetto. My husband is an architect. Examples of Mia: Questa è la mia casa. È la mia. This is my house. It is mine. La mia ragazza. My girlfriend. Ciao, Giovanni

ciao Dario john's explanation is perfect. If you need more info please let me know. Ciao

Ciao Maria, Thank you for your comment.