Pronouns are like the lesser known athletes who sit on the bench for part of the match, but then have the opportunity to substitute a main player.

Pronouns take the place of a noun.

Subject pronouns:
I
You
He, She, It
We
You
They

Davide loves Juventus. (Davide is the main player.)
He loves Juventus. (“He” is the reserve player for Davide.)

Object pronouns:
me
you
him
her
it
us
them

They did not invite us to their party.

Possessive pronouns: These replace the pairing of a possessive adjective + noun to avoid repeating information. i.e., This is not your toothbrush; it is mine.

mine
yours
his, hers, its
ours
yours
theirs

Reflexive pronouns: These are used to avoid referring to the same pronoun twice in one sentence e.g.,
I made you this scarf myself.

myself
yourself
himself, herself, itself
ourselves
yourselves
themselves

Demonstrative pronouns: this (singular, near), that (singular, far), these (plural, near), those (plural, far)

Indefinite pronouns: another, anybody, anyone, anything, each, either, everybody, everyone, everything, little, much, neither, nobody, no one, nothing, one, other, somebody, someone, something, both, any, all, few, several, some, none

Nothing is better than freshly baked bread.

Relative pronouns: who, whom, which, whose, that (*see full explanation of relative pronouns)
The woman to whom I owe my life lives in Nepal.