You could say that mindfulness is like a personal app that allows you to see what's playing out in your mind whenever you pause to notice it. Without this awareness, the unnoticed thoughts, beliefs, memories, and feelings sit at the control panel of your mind, pushing your buttons and controlling your behaviors.
If your goal is to achieve your dreams, to become a better version of yourself, or to simply just be happy, I encourage you to let go of shame, regret, resentment, anxiety, and anger. Leave those unhealthy emotions behind in 2014. By doing this, you'll truly start 2015 with a clean slate ready for prosperity.