You procrastinate
This is the most common quality that can be found in people who fail at what they do. If you are a habitual procrastinator you are unlikely to achieve much in life, let alone becoming a millionaire or a billionaire.
According to the law of diminishing intent, if you fail to act on an idea as soon as it strikes you the sense of urgency you have tends to diminish rapidly. After a while, the sense of urgency and the intent to take action goes away completely, at which point you are unlikely to get anything done.
