Visualization
Visualizing yourself in the situation as a confident and happy person helps to shape your perception of yourself when you are actually in the situation. Close your eyes, sit back somewhere relaxing, listen to some relaxing music, imagine yourself in a scene or situation and see yourself the way you would like to be. In this scene, how do you feel? What do you hear? Do you smell anything? Are you moving? What do you see? Get all your senses involved to make it real.