I started with about $3000 4 years ago, didn't get me far. By the time I bought my gear, signed up for groundschool and paid my membership, almost half of it was gone. The worked in a factory nightshift and made about 900 bucks a week and that was just enough to get me to do my training. If you don't work a good fulltime job, then the bank or your parents are going to have to dish out the money because once you start soloing and getting ready for your flight test you will need to fly minimum 2-3 times a week!
My advice is its good to start young, only if you can afford it. I would wait till you finish high school and start flying in a college program while doing a diploma or degree. That way its easier for you to save money before hand and even get a bank loan or line of credit.
Best of Luck!
BFD