There are many creative ways to relax. But there are also a few foundational things you'll need to develop to maintain a relaxed attitude - no matter what the circumstances.
1. Get plenty of rest.
2. Drink more water than any other liquid.
3. Stretch or exercise everyday.
4. Eat a healthy diet rich in raw veggies and avoid refined foods (sugar, flour, etc.)
5. Smile. A lot. Especially at people you love.