I am awful at everything. I am a horrible, horrible person that gets everything wrong and treats people like garbage. I'll never be good enough for anything or anyone, and knowing that hurts my very being. I just want to be good for something. But I'm not. everyone's better than me and it hurts. I can't do this anymore.
I agree with a lot of the people in here that, yeah you may not be good at some things, we all aren't great at some things but we are good at other things... It's just our limitations and every human no matter how perfect we perceive them to be, will always have their own limitations. If you're thinking you're such a horrible person, why is that? I'm sure you're nowhere near as bad as you think you are, as champagne said, we tend to be our own worst critics.
You will find something that you are good at, you probably know something you're good at and once you pursue that, thinking of it in some competitive term will subside cos you'll just enjoy what you're doing.
You have been heard and I hope you can start to feel better about things in time