So...

I took the opportunity afforded by a brief vacation from antidepressants to take a dispassionate look at my situation.  It occured to me that what I have been saying to myself is quite different from what I would say as an observer of someone exactly like me in circumstances, but not myself.

Which is this:  I am a failure. 

I effectively dropped out of graduate school for no better reason than that I couldn't do the work.  I have never had a significant job, nor any accomplishments of which to be proud.  I have done nothing, I do nothing, I am nothing, and were I to die today, I would leave nothing but a stain and a stench.  Currently, I am so at the end of my rope that I am more or less forced to move in with my in-laws in order to save up enough money to be able to get the odd tooth filled here and there.  I have no prospects, no job, and no fanbase. 

What happened?