Hey, as you know already from the title, I'm new to Bitcoin, I would like you to help me by telling, where to buy, when to buy, where to sell, when to sell, things like that.
Important: I'm 17 years old, some methods may not work if I don't have 18, and that's what I have noticed.
I hope you can help me get started.

Edit: Thank you guys, your information is helping a lot, I already have a wallet, feel free to help me
1KnWzEdJgAmE3rB3Xax8sDfydnikguxrhhThere are many things to learn first you go on trading. First you need to find out what coins to buy and how potential is it. You need to know how much you need to be a capital when trading, maybe the money you are okay to lose that is the amount you need to serve as capital. Try to do some research about trading coins for you to learn more and be a good trader and what is the characteristics of a good trader study that.