When you want to change anything it is best to simply be the change. Nothing will influence your thinking and your feelings as much as your body becoming the new you.It is simple really, we are accustomed to having our minds or our emotions tell our body how to behave. Sayings like: "I expect it will be a disaster," result in slumping body language. Feelings anxiety cause our body to tense up. But you can work your system the other way around and use your body to influence your thoughts and your feelings.Try this: sit or stand up straight and put a big smile on your face - now, how do you feel?