Me, myself, and I may refer to the same person, but they are not interchangeable. Myself should be the one you hear the least, but it’s often used incorrectly in place of me.
Me is an object pronoun, which means that it refers to the person that the action of a verb is being done to, or to whom a preposition refers.
Myself is a reflexive or stressed pronoun, which means that, generally speaking, it should be used in conjunction with the subject pronoun I, not instead of the object pronoun me.
The Bottom Line
Myself can be used for stress, but most grammarians won’t allow it to be used alone – they reject constructions like “Carol wants to meet with John and myself” (correct: with John and me) and “The book was written entirely by myself” (correct: by me personally).
Just remember that myself can be reflexive (I’m doing something to/for myself) or emphatic (I myself). Otherwise, you probably want to use me.