Monitor what the market does, not how your account is affected. I say this because the subject of your job is market movements. That's what you have to react on. The third element deserves more attention. However, it is still very relevant to this topic and I want to go deeper into it.
Nobody wants to be a fool or a loser.
That's where your ego takes over immediately. It tries to save you from this unpleasant feeling. Those sellers are. The stock will reverse in a minute and they will be crying. I will be celebrating.