Challenge Negative Thoughts
Ask yourself: Is this a productive thought? Is it helping me? If it's just a negative thought you're rehashing, then you must be able to say to that thought: 'Stop!'
Learn to Relax
If your anxiety does not improve after a few weeks, talk to your doctor. You may have an underlying medical problem (such as a sleep disorder) or a treatable psychiatric condition (such as an anxiety disorder) causing you to feel this way.