The video's message is clear: don't be afraid to be yourself, and don't let anyone tell you what to do. This message is especially important for young women, who are often bombarded with messages about how they should look, act, and think. Christina's video is a reminder that it's okay to be different, and that you should never change yourself to please someone else.
The video also features a number of visual metaphors that reinforce the song's message. For example, Christina is often shown dancing in front of a mirror, which represents her reflection on her own life and choices. She is also shown holding a heart-shaped balloon, which represents the love she has for herself and her friends.
Overall, the music video for "Advice" is a fun and empowering celebration of self-love and acceptance. It's a reminder that you should never let anyone tell you who you are or what you should do with your life.