It's a wonderful time, but planning a wedding can often seem overwhelming. One quick way to help you relax is to simply change your breathing pattern. Shut your eyes and focus your attention on your breathing. Try to allow slow breaths to gently come from your abdomen, but don't strain. Simultaneously, you might want to think of your inhalations as breathing in fresh, calming energy and your exhalation breaths as breathing out tension.
Many people like to imagine themselves at a beach, in a meadow, or walking through the woods.
You can visualize birds singing or waves lapping against the shore. You can be alone, with your fiance, or whatever appeals to you at the moment. Then, when you're fully relaxed, open your eyes and bring this peaceful feeling back with you into your present environment. For some people, playing soothing music enhances the effect. Or, spend a day doing something exciting which has nothing to do with planning your wedding.