Everyone gets nervous or anxious from time to timewhen speaking in public, for instance, or when going through financial difficulty. For some people, however, anxiety becomes so frequent, or so forceful, that it begins to take over their lives.veryone gets nervous or anxious from time to timewhen speaking in public, for instance, or when going through financial difficulty. For some people, however, anxiety becomes so frequent, or so forceful, that it begins to take over their lives.