The amateur worrier spends too much time worrying about things that are likely to happen, but the true professional worries about the unlikely events that can be really disruptive to our plans. We worry about these events because we know that it is the unexpected that can cause the most harm.
For instance, your professional worrier is not concerned about the possibility of a rise in interest rates or a share market correction. These issues might slow the economy and may even bring on a mild recession, but we have lived through recessions and market crashes before.