Depends on whether it's situational or chronic and what methods normally work for you. But generally, you could try petting animals, playing video games, watching movies, reading books, talking with and seeing family or a friend, eating chocolate (dark is better) or cheese, punching pillows, they're all distraction based methods. I wouldn't recommend facing the cause of your stress at this time, I'd wait for therapy for that so you have a good support network x