fourteen year old photographer

I think you should ask someone who is familiar to this kind of business when you want to buy cables or cameras. It is important to ask a professional even, because you are too young to deal with this by youself. I think the best thing is to study photography in school when the time comes or wait a little to become more mature to be a photographer. It is best to start now, the younger you start the better, but I do not think you can start selling photos right in the beginning. So ask the more experienced people around you in that sphere and then start doing something about being a photographer. I personally wish you good luck :)