In the Memoirs of a Stock Operator, Jesse Livermore also did something like taking a small profit and then running away, and finally missed a chance to make a big profit.

He wrote: At this moment, I realized that I had made a big mistake. Why should I be afraid of losing something that I never really owned? I was too eager to achieve success, too eager to convert paper profits into real cash. I should have been more patient and had the courage to hold the position to the end.

Think about whether you are like this now?