What am I doing

Does anyone else feel like they're never really happy? It's kind of hard to describe without sounding overly depressing but do you ever feel like, no matter what happens to you, no matter how happy, it never outweighs the want to die? I feel like I wouldn't mind dying tomorrow, for example. If the world was going to end tomorrow, I wouldn't care. And even worse, some days I actively want to die. I don't know why I feel like this, I have a relatively good life, I feel. Does anyone else feel this way??