Everything won't be okay

Has it ever happened, that you really believe you want something, like, you seriously know that if it would happen, you'd be so happy? But then, it does happen. And you're like, "Oh. That's not how I wanted it." Yeah. Well, story of my life right now. I really believed that I wanted this, but now that I've gotten it, only one part of me wants it. The other part wants everything to be about me, and nothing to do with anybody else. The other part wants others to feel horrible, and upset, but I feel wonderful. Well. I guess that's just not how it is, eh? Goodness. Life sucks, doesn't it?
Everybody always says everything will be okay. Hell, I say that from time to time, but honestly, everything won't ever be okay. You'll never be happy with what you have, and you'll never be content with who you are. Neither will I. There will never be a point in my life, my teenage years especially, where I'm 100% content with who I am, and what I have, and who I'm with. And even though I've realized that, I'm still not very good at getting over myself.