Before you invest in stocks, you need to have some savings. A better vehicle for your initial investments/savings would be a Certificate of Deposit (CD). If you want easier access to your money, you can have just a regular old savings account.

2500 usually needed to open up a discount brokerage, how much do you have set aside now?

I'm a junior on high school at the age of 17. I want to invest some of my money so that I won't at least spend it on something I don't need. I want to make some extras money aside from my job so that I can buy a car. Should I and can I do that?