The two voices

A win is followed by two thoughts. They pull in opposite directions and both of them cost money.

I could make more today

The first is greed. The market is open, the last trade worked, and stopping now feels like leaving something behind.

It produces a second trade that was not on the plan, usually at a larger size, because the last size worked. The setup for it is thinner than the first one, which is why it was not taken earlier in the day.

Greed makes you take the trade you had already decided to skip.

I do not want to give it back

The second is fear, and it arrives once you are up.