Fear that is proportionate to the threat is positive. It protects us. A legitimate fear of death by accident, for example, motivates us to drive carefully. Likewise, many of the fears serve a protective function. Fear can also motivate us to do certain difficult tasks. Fear of punishment, for example, can motivate a child to study or do the homework. Fear becomes dysfunctional only when it is excessive or disproportional to the threat or danger. Hence fear need not be something that we need to fight against all the time or run away from. Analysing our fears can guide us in dealing with them in a healthy and useful manner.
ANXIETY
Anxiety is a common emotion. A prominent feature of anxiety is uncertainty; and the unease and distress that such uncertainty causes.
Anxiety can be distinguished from fear in that the object of fear is "real" or "external" or "known" or "objective." The origins of anxiety are unclear or uncertain to the person. Both anxiety and fear are specific negative emotions and can cause much distress.