Why do I hate everyone and everything?

I totally get what you're saying. You aren't the only one out there who feels like this, a lot of people (including myself) feel what you feel. I don't know if I could call myself happy, but I'm not unhappy either. I'm in the middle of those two emotions, some days I'm up and some days I'm down. Everyday, however, I feel a certain dislike towards the people who I know don't feel what I feel and live their lives in a simple way I wish I could live mine. I've gotten a lot better at finding happiness though, just by simply letting go of my anger. There are always going to be people who enjoy a social status or certain fruits of life that are not offered to me. I'm coming to terms with this through the fact that I will have blessings in my life that others will yearn for as well. When you are at school and start to feel frustrated by your peers, search for something positive there (trust me, I know some are total imbeciles, but there is a grain of hope in everyone). Once we are able to see past others' flaws, we are able to see past our own, ultimately making us happier. When we can see something good in others, we see that in ourselves. And when we see it in ourselves, others see it in us too. None of this is a direct route to happiness, I'm sorry to say that no one has discovered one yet, but these are definitely baby steps to take to become a happier person. Part of all this jazz is being a teenager, we all tend to go through "I hate everyone, people suck" phases of some degree. How would I know this? I'm a 16 year-old gal who feels what you feel, and I have a bunch of girl friends and a brother who all feel this to a certain point. You aren't alone, I can tell you that much. I sort of rambled through this, but I hope I gave some inkling of help. Ps. Don't ever contemplate hurting yourself, the world is beautiful when we ignore its flaws. We are young and haven't seen all this place has to offer, but there is ALWAYS something to live for. Best of luck, and I'll keep you in my thoughts!