Luck is very important for trading. Many can earn a lot of profit due to good luck. So I want to say that for trading, like skill, there is luck. If luck is not good then success cannot be achieved by trading. No one can control fate. So those who have good luck can achieve success by trading.
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But if we just rely on luck no matter how much we already earned. We will get rekt at the end because we will trust that we will always win every trade without measuring the risk. Having a risk management skills and basic technical analysis skill is needed to survive in cryptocurrency trading