If you're feeling stressed out, try going for a walk. Walking will increase the circulation in your body and get your blood flowing. It also gives you a chance to get some fresh air and to clear your head. A quick ten minute walk can help you feel much more relaxed.
One of the best ways to reduce or eliminate stress in your life is to learn how to say "no". If you find yourself overwhelmed with too many commitments or constantly doing things you would rather not be doing, it could be because you have a problem turning people down when they ask for help. The best way to avoid this problem is to be honest with yourself and with others. If someone asks for help and you don't have the time or energy, simply tell them no.