There are little gems spread all over Nahjul Balagha for improving our emotional intelligence and achieving success in life. Here is one from the short sayings at the end:
Success is the result of foresight and resolution, foresight depends upon deep thinking and planning and the most important factor of planning is to keep your secrets to yourself- Imam Ali(as).
Professor Peter Gollwitzer is a professor of psychology at NYU. His research covers areas like social psychology, neuropsychology and cognition and is mainly focused on how goals and plans affect cognition and behavior. Gollwitzer and his colleagues conducted a study that was published in 2009. They suggested that when people announce an intention to commit to a goal in public, that announcement may actually backfire.
Gollwitzer and his colleagues provided evidence for this point. In one study, they had students interested in becoming Psychologists list two activities that they would perform in the next week to help them achieve that goal. Half of the people handed what they wrote to the experimenter who read it over and acknowledged reading what they had written. The other half were told that the exercise of writing down their intentions was given to them in error, and that nobody would be looking at it. The following week, all of the participants were contacted again and were asked to remember the goals they had written down the previous week and then to write down how much time they had spent on those activities. The people whose goals were read by the experimenter actually spent less time pursuing those activities than the people whose goals were not read. A number of follow-up studies were presented as well that ruled out other explanations for this finding.
These research results suggest that wanting to have a particular identity is an important motivator in carrying out the activities one needs to perform to succeed. When those activities are the only marker that you and others have that you have taken on a particular identity, then your motivation to work hard will be strong. When there are other ways to communicate your identity to others, your motivation to work hard will not be as strong. So when you are just starting out on the road toward a big undertaking, it is probably best to let your actions express your intentions louder than your words.(https://www.psychologytoday.com/us/blog/ulterior-motives/200905/if-you-want-succeed-don-t-tell-anyone)
The belief that we are more successful with our goals if we announce them and create accountability has also been proved wrong by research. Research says that telling people what you want to achieve creates a premature sense of completeness and is actually counterproductive.