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 failure is never final, it's actually the key for improvement and learning. That's true but consistency can make you profitable in trading, as you can see some strategies success rate is 40%-60% and you can utilize the leverage in order to have a better profit in your position, so even if you managed to lose around 3-4x consecutive you'll be able to recover using leverage with the 40%-60% success rate of your trading strategy. I lose a lot of times before because I used the leverage the wrong way, and that experience taught me the importance of discipline and risk control.