Be yourself, and don't let anyone pressure you into doing stupid crap just for the sake of being "cool" and "hip". It's not worth it! Never feel bad for being different or holding onto your innocence. Your life should not be rushed, so please don't get in any hurry to grow up. And if you have parents that suck and/or don't care about you, just remember that you can always find someone who does.
Now for the spoiled brats:
You aren't entitled to crap, and we adults aren't your slaves. You want something? Get off your butt and get it YOURSELF. atuação like a spoiled brat won't get you anything except a butt-whipping. That is all.