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
Behavioral changes like limiting screen time before bed and eliminating caffeine and alcohol can also help you get more restful sleep.
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.