How can I make more money?

As soon as you can legally work you should do so... do well in school (cannot stress that enough however cliche it may sound) and move out as soon as you can so you don't end up like them. Until then there isn't much you can do but read and get ready for the world... it is beautiful if you have the incentive and ambition to milk it and for 13 you have a beautiful and practical mind... don't let them change you