Teenage Dream by Katy Perry This is saying to take chances in life and not to regret them. Once you make a choice, you can't change it, so you might as well keep your head facing forward and keep moving on.
when people walk away from you, let them go. your destiny is never tied to anyone who leaves you, and it doesn't mean they are bad people. it just means that their part in your story is over. Amazing, so TRUE!