Yes, I think so because
1. If you are trying to get that point across by using a pronoun that refers to you, you have the choice of "I, me, and myself." "I did it to I" and "I did it to me" don't seem right, so at least by process of elimination, it is the only word we can put there
2. "Myself" is always used for one of two purposes and since it is obviously not being used to emphasize you, by process of elimination, it must be the other
But the emphatic pronoun "myself" is still a reflexive pronoun, nonetheless. It just happens to be used to emphasize rather than show that the subject's action is being done to the subject. (In the first sentence) So if your goal was to write a reflexive pronoun, you already did it
Seems like I won
Haha congrats