One Ring to rule them all as great professor once said. It'll erase every flop they had so far.
I don't get the fucking struggle man. It really shouldn't be that hard thing to do imo. I know not every song is gonna be a hit, but come one, it is doable.
They should just keep trying. Next comeback. Or in one year. I don't think it'll ever be too late for a group like Twice. And it is applicable to Itzy, to RV, to Mamamoo as well.