I'm so depressed.

"emo" now refers to some sad or bad emotions on the Internet, which has no clear meaning, and can express sadness and depression. Anger can be expressed even under certain circumstances (which are rare).

At first, it was a musical style, and then it gradually evolved into words for young people to express their feelings. Modern people's life and work are under great pressure. Young people should adjust their emotions and always face life and work with a full mental state. However, when one's negative emotions can't be stretched, it is called "emo".