best advice is sit down with your parents and discuss this, you can not work legally, you need money, talk to them about what you can do around the house, for money, talk to your neighbors and do the same thing.
when I was 14 in the summer I was making 50 bucks a week mowing lawns, another 80 babysitting, and 20 helping my neighbor take care of her garden. 150 a week to you may seem like peanuts, but to me it was a lot of money, I'd ask my parents to take me and drop me off at the movies/mall, on occasion, but I wish I was back in those days, when I had money and was not in debt, because I want to better myself.