Risk management is the true king in this industry. Even your highest-probability (A+) setups are ultimately at its mercy. After all, what is the value of an A+ setup if poor risk management has already wiped out your trading capital?
A profitable strategy alone is not enough to keep you in the game. The market will always present opportunities, but only traders who protect their capital will be around long enough to capitalize on them. Risk management is what allows you to survive losing streaks, preserve your confidence, and remain consistent over the long term.