I really have to narrow it down to just one? Yes, you do.
With all of the fears floating around in our heads, we spend a tremendous amount of time worrying about things that have a very small likelihood of ever occurring.
Is your biggest fear include losing your job, not being able to pay all of your bills this month, not looking your best on the beach this summer or even that you won't live up to someone's expectations?
Break your biggest fear down into pieces and evaluate why it's hanging over your head. Once you do that, address your fear and don't let it control you. You will eliminate the majority of stress in your life with this simple exercise... today!