Stress in life is unavoidable (despite how much you are trying to avoid it). The question is: what is the best way of dealing with it when it occurs? If you do not have any strategies to deal with it (other than run away), then read this: How to Turn Off Harmful Stress Like a Switch.
Sometimes just knowing you have one or more tools available to you can automatically reduce your stress. Read that and load up your stress toolbox.
P.S. If you need more tools, see this piece in the New York Times.