Found this article and it is really interesting and helpful.
"Everyone worries at least some of the time. Whenever you are in a mode of trying to avoid something bad, stress and fear are a natural reaction.
So, then the question becomes: How much is too much?
That is where we take a page from the "serenity prayer" that is credited to the theologian Reinhold Niebuhr. In its most popular form, it reads:
"Grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference."
The beauty of this simple adage is that it gives you a good formula for thinking about whether you are having too much anxiety."