If there is literally only this exact moment right now how does time exist? My fears and depressions live outside of the current moment and thrive in what you would probably call time. Is it possible that time was invented by man to keep us from being free and living in the moment?
Its more likely that time is a thing which exists and that we move through like a place marker, the problem is that we have such a hard time paying attention to the place we are currently in as opposed to dwelling in the past or fearing the future. Perhaps its mastery of living in the moment is what one would call true enlightenment because the longing for reaching a point in time or being unable to stop reliving a past event is what keeps us from being happy.
Is the goal in all this finding happiness or is that also a form of searching for something as opposed to accepting our current sate?