Why?

I saw another one of them today.
Why are they all so happy? So carefree? How can they go through their lives without noticing all the horrors?
I hate them.
Every single one of them. They're so carefree-while I have to worry about everything around me.They have so many emotions-why I can barely cope with happiness.
Maybe I'm not so jealous of them.
Maybe it's just the fact that they do whatever they want.But I can't do anything without slipping up.
Maybe they're just a side of me I've never seen or expressed.
Or maybe I'm just a jealous bitch