HOW DO WOULD ONE START a COMPANY?

i am seriously intrested in starting a company. i am only 16 but it's good too start early right? I want to start a company that desings and manufactures high quality electronic products. i have an abundance of knowledge regarding electronics. ive already designed a portable music player and some speakers(serious ones that will actually work). i know ill have to have a location and equipment, but i dont know how to do the books. like patening process, regestring the name, regestirng products, trademarking phrases,etc. if you have any advice let me know.thx.