When you have unrealized profits, you’re less likely to notice your mistakes.

While reassuring yourself that you haven’t lost money, you’re also desperately looking for opportunities to make up for the losses.
In reality, on a subconscious level, you don’t want to bear losses or face them—you think that after temporarily numbing yourself with short-lived comfort, you can quickly trade again to cover it.
But in practice, this irrational way of operating is the beginning of worsening losses.
Only when you truly incur losses that you can’t tolerate will you stop, look back, and reflect on your mistakes.