[header] How to not worry about something [title] Call a friend. [step] When you find yourself worrying, immediately get out of your head by getting in touch with a friend. Strike up a conversation about a relatively neutral topic unrelated to your worries. 
You can give your friend a heads up that you are worrying and need a distraction. [substeps] If your friend is reasonably logical and grounded, you might talk through your worries with him or her.