"I guess I kind of realized that my whole life isn't one giant press junket. I don't have to be smiling all the time and always have the perfect answer"

Miley Cyrus is reviewing the realization that life is not constantly a press junket, where one is expected to be continuously smiling and have the best response. She is acknowledging that life is not always perfect which it is okay to not be best all the time. This quote is a suggestion that it is alright to take a break from the pressures of life and to not constantly be on. It is a tip to take some time for yourself and to not be so tough on yourself. It is a reminder that it is fine to make mistakes and to not constantly have the ideal response. This quote is a pointer to be kind to yourself and to require time to unwind and enjoy life.