Meaning of “herself” - Learner’s Dictionary

herself

pronoun uk us /həˈself/
REFLEXIVE

A2 the reflexive form of the pronoun 'she':

She kept telling herself that nothing was wrong.
EMPHASIZE

B2 used to emphasize the pronoun 'she' or the particular female person you are referring to:

She decorated the cake herself.
(all) by herself

A2 alone or without anyone else's help:

She managed to put her shoes on all by herself.
(all) to herself

for her use only:

My sister's got the house to herself this weekend.

(Definition of “herself” from the Cambridge Learner’s Dictionary © Cambridge University Press)