Breaking Point?

See, there's always a point where, in the midst of all my sadness and anger, I become so apathetic, I just think, "You know what? Screw it. I just suck at life, I hurt people, I'm a horrible person, and I won't get any better. I don't care anymore." Then something else happens, I completely break down again, and sob my heart out. Then the cycle repeats. Is there ever a point when apathy actually reigns and nothing can touch your emotions again? Because given the rollercoaster mine have been on today, I sort of want to reach that point...