I seriously have no clue why so many young teenagers seem to think they have it hard. You have a roof over your head, I would assume, and you most likely don't have to pay for anything beyond gas if you drive and the occasional outing with friends. You don't have to worry about bills or paying for every meal you eat and you definitely don't have to worry about paying for school tuition. Sadly, all these complications include money, but that's what makes the world go round these days, as they say.
What I am trying to say here is... basically what everyone else is saying. Cherish what you have right now. Your attitude is probably a big reason for many of those who "don't get you" to not even try. And believe me... your parents understand how you feel. They were teenagers, too. It may have been a long time ago, but they do remember. I am almost literally sick of kids who complain about a horrible life when they have everything and I hope you aren't one of them, but I sure as hell know you haven't had to make a decision like "Should I get this tank of gas or do I want to be able to eat for the next few days?" yet. So just buck up, stop complaining, and actually do something about it. Complaining and lashing out do nothing other than make the situation you're in a lot worse and if you don't mature soon then you will be in for a very bad adult life for a while.