Affiliate Marketing Secrets

I am 14 years old. Me and a friend are very interested in stocks. We want to spend some years researching the ins and outs of investing, and then start investing maybe when we are 15 in a few months or 16. I realize that our legal guardians are supposed to open a custodian account for us. Where would I go to open this? Also, could someone just explain some simple things to me very very briefly, like NASDAQ and DOW? Im reading a bunch of books, and I would just like to increase my vocab. Thanks!

Hey, I really want to invest my 500 pounds into a business to make a profit but I don’t know much about the stock market and the ins and outs, can somebody fill me in and what to invest on and when? And any other secrets? Thank you very much guys. Daniel.