Prediction can sometimes favor you or fail you, because trading is also a game of luck and there's no one person that is perfect in prediction, just that when you are favored, it looks like you're the champion but I tell you that no champions forever.
Yes, there is no champions forever but skilled people are always leading in every aspect because they have experience and have more knowledge about it. Bitcoin and crypto trading requires a lot of experience and luck; but it is always easy for people that are very skilled and experience and their predictions are favorable most times due to their experience and frequent trading. Nevertheless, they can’t keep winning anytime, they will also lose, but I think their losses will be minimal because they don’t trade like newbies and they don’t trade all coins, they only trade with their trusted analysis that is why they always have minimal losses in their trades.