You're correct, newbies think they can keep winning everytime they trade but that's not how trading works. When trading sometimes you win other times you can lose but that shouldn't make you quit. The professional traders also lose, when you lose you have to use that chance to learn new things. You can learn why you failed that trade and use the lesson you learnt to make better trades when next you're trading and that's how to grow your knowledge in trading cryptocurrency.
I don't think there's any unknown facts about trading that we should know that's hidden, we already know them but many traders aren't using this things they know when trading. They're just trading with the mindset that they're gambling therefore they don't need to use technical analysis or other analysis to understand the market, they just want to make quick profits and that's why they'll keep losing until they're ready to learn trading properly.