Reflexive Pronouns: Myself, Yourself, Themselves

Reflexive pronouns: myself, yourself, himself, herself, itself, ourselves, yourselves, themselves.

The action comes back to the subject

I cut myself.
She taught herself Spanish.
Be careful! Don't hurt yourself.

Emphasis

I did it myself. — without help
The president himself opened the hospital.

by myself = alone: I live by myself.

Not every verb that is “reflexive” in another language takes myself: I feel good (not I feel myself good). wash / shave / dress often drop the pronoun when it is obvious: He shaved and left.