Of course I am not broke, I live in an upper-middle class family. I work extremely hard to maintain a 4.0 GPA in high-school, I take difficult classes (they seem to be my interest), and I am ready for what lies ahead of me.
What I have been trying to explain to you is that it is not just mentality that will get you financial success, it is having an opportunity come by you and you being able to identify it. I have friends whose families work 50 hours a week, one of my friend's mom works 40 hours while she is 8 months pregnant!! And they are just able to afford a small apartment. And you know what? They are happy.
You don't just "have opportunities", you make/create opportunities. You create your own future. If you don't, circumstances will. And you will not be happy. Your thinking is your greatest strength and worst enemy. Keep it positive/productive. Make wise choices.