I just don't know why I feel like this. Most of the time I seem to be happy, and then all of a sudden for no reason I start feeling like crap and just want to cry. I can't even understand my thoughts anymore, I'm so confused and I don't know what to do. I feel like crap at least once a day now, usually when I'm left alone. I feel like a failure almost all the time now. I hate feeling like this..I want it to go away.