I opened the thread again cause yah didn't give it enough time for people to answer.
At 14 years old your options are pretty limited.
You're basically stuck with the old standby stuff like paper route (also known as slave labour), babysitting, lemonade stand... etc ...

One thing you can try is eBay. If you can find stuff worth selling you can make a bunch of extra cash from junk lying around the house.
You can also buy stuff real cheap off eBay then turn around and make a profit from it. For instance, I bought a zoom lens for $10 & resold it for $75.
If you're in Canada, you can get an 8% discount on postage costs as well with a thing called 'VentureOne'.