It means you can do anything and you have confidence. This is an empowering song over women. Men think that they are stronger than women but in the music video a woman is surviving in the jungle. She also is stronger than the lion.
This means that she's not going to be a shy person anymore. So she's going to be out-going and confident. And that she can anything that anyone else can do. And she is not going to let anything bring her down. I like this part because it shows that she has confidence.