Don't worry. Define it. Then be happy.

As complexities increase so do anxieties. Focusing on the symptoms, imagined effects or potential ramifications in any given situation just serves to push oneself further into the deep end. And if you can't swim or more precisely can't get yourself to acknowledge that you have to swim, you're going to panic, sink and then unfortunately drown. The point is that in any given situation, it is critical to define the situation as opposed to being overwhelmed by the situation. Then one is free to choose an appropriate response rather than being a slave to reaction.