You buy and you commit your money to it.
You sell and you earn. It's either you lose, it's a breakeven or profit. How are you supposed to earn if you don't sell?
Avoid those youtube videos that you mostly claiming to double your Bitcoins in a day or two. It's an obvious pitfall trap for ya.
I am not surprised if crypto space in Youtube is a pit for scammers because surely many newbies are learning through that platform, just like me back then.