Invincible.

I have come to the point where I think I am immune to unhappiness. I've had that belief for a while. But what snaps me back to reality is that when something bad happens, my initial reaction is to be sad. I would like to believe that I have control over how I react to situations, and that my emotions are my own. I would like to believe that I can choose what my mood will be, but I have seen that this doesn't usually happen anymore. Why is that? I used to be so strong. But now I can't even make myself feel better. Damn.