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
1KnWzEdJgAmE3rB3Xax8sDfydnikguxrhhIt is good for you to start at an early age to save better and to earn more. However, there are things that you need to learn before you start trading or investing. There are also useful tools for you to use to gain more knowledge about it. Try to read and watch videos or articles that would be useful to gain wisdom about bitcoin.