The song is about being the exception to basic psychological truths... hence the line "Sigmund Freud, Analyze this."
She is basically saying that she is doing everything the opposite of what these truths are... Ex. "I'm gonna destroy my ego" and "I'm gonna delay my pleasure" which is the opposite of human nature. We seek to achieve pleasure as fast as possible.
The song is about being the exception to basic psychological truths... hence the line "Sigmund Freud, Analyze this."
She is basically saying that she is doing everything the opposite of what these truths are... Ex. "I'm gonna destroy my ego" and "I'm gonna delay my pleasure" which is the opposite of human nature. We seek to achieve pleasure as fast as possible.