Sad

I don't like being sad. Why people label themselves 'emo' and 'depressed' to fit in is beyond me. Being sad is the worst feeling. I wish I could be happy again, which I know is selfish but I can't help it. I don't understand why I'm gradually getting even more sad as the days go on, and I don't understand why I can't make myself happy like every other time I've been sad...I don't know what's wrong with me and I'm really scared.