Trading requires having a solid guidlines and discipline. One of the hardest thing to overcome in trading is emotions because it mostly lead to many losses.
Our body emotions naturally react especially when we are losing.
For example; We win 20% of fund but the other side of your mind wanted to win more so you trade again and you lose 30-50% of your balance (GREED).
Another one; You are not focused and lose your original plan and distracted because you are eager to compensate the losses in just one trade and then you enter the wrong entry and lose more (PANIC, fear and Distruction).
Emotions can actually be controlled. We just have to grip on that strong determination and strong mindset. In reality, our emotions is our enemy and prevent us to trade successfully but setting emotions aside will be a great help to focus on our goal.