Frequency: The word is one of the 1500 most common words in English.
Note: 'Myself' is the first person singular reflexive pronoun.
1.
A speaker or writer uses myself to refer to himself or herself. Myself is used as the object of a verb or preposition when the subject refers to the same person.
I asked myself what I would have done in such a situation...
I looked at myself in the mirror...
PRON: v PRON, prep PRON
2.
You use myself to emphasize a first person singular subject. In more formal English, myself is sometimes used instead of 'me' as the object of a verb or preposition, for emphasis.
I myself enjoy cinema, poetry, eating out and long walks...
I'm fond of cake myself...
PRON [emphasis]
3.
If you say something such as 'I did it myself', you are emphasizing that you did it, rather than anyone else.
'Where did you get that embroidery?'-'I made it myself.'
PRON [emphasis]