Is my a proper noun

Answer 1

No, the word 'my' is not a noun.

The word 'my' is a pronoun called a possessive adjective.

A possessive adjective is a word placed before a noun to describe that noun as belonging to someone or something.

The possessive adjectives are: my, your, his, her, its, our, their.

The possessive adjective 'my' takes the place of a singular noun (or name) for the person speaking (a first person pronoun).

Example: My mother made my dress for the party.