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
1KnWzEdJgAmE3rB3Xax8sDfydnikguxrhhRead a lot friend especially in the beginners section and explore it more and expand your knowledge about bitcoin it is for your good also. You can or you should join bounty campaign first to get tokens I mean earn tokens then trading if you want but risky.