I hope you know that when you are copy trading, you are sharing both the profit and loss of whoever you are following in a way when it comes to that. So there is never a guarantee that you will always keep having some consistent profit over time, and any platform that promises you that should be questionable.
I have never really tried copy trading since I can trade myself, but I know some platforms offer that, but the idea is just basically to copy the trading strategy of someone else automatically, and trust me mate, losing is part of trading whether you like it or not.