Common phrase used by females to express discontent in a current situation. These females are often the ones who use the phrase "can you not
"I hate my life" is usually meant to be a speech filler; it holds no significant value to a conversation or situation. It is probable that the female is trying to seek attention after mis-performing or failing some task, however, little sympathy is provided by the surrounding population.
Some proper responses to the phrase are the following: "Aww," "Uh oh," and "What happened?" It is disrespectful to reply with the following: "I hate your life, too," "Hahaha, you suck," and "Oh, you fail."