Meditation brings your mind into the alpha state. Thus you can concentrate on the subject without interruptions from other influences. The first few attempts to completely relax might not bring immediate results, but you will feel refreshed and better than before. Give yourself 10 to 20 minutes. Best not to lay down, but to sit in a comfortable position, close your eyes and imagine to be in your special, peaceful place. As you are imagining that place, wonder around in it and enjoy the scenery. Relax your head, body, shoulders, arms and legs and feel yourself going into a deep relaxed state of mind. Once you feel relaxed, concentrate on whatever it is you want to change or accomplish and visualize the change as it already being in effect.
Meditate daily, it will help you to reach a goal or show you the path to take to a blissful happy being.