In a 1996 study, one group was asked to visualise success in a darts competition, the other to reflect on past mistakes and what could be done to correct them. The latter did much better than the former. Focusing on past failures produces better work than dreaming of future successes.
Many readers will be familiar with James Collins' Big Hairy Audacious Goals (BHAG), outlined in his 1994 book, Built to Last. What has been lost since is that Collins did not say fantasising about a BHAG was enough. There were years, sometimes decades, of toil between formulating the BHAG and its achievement.
Today's fetish, the power of positive visualisation, with nonsense slogans like "Impossible Is Nothing", deludes the weak of mind that success need not come through combined inherent talent, hard work and luck, but will be delivered at no cost merely by thinking of success.
We overestimate the prospects of success and tend to ignore our failings. Better to face the truth. Failure is everywhere. Almost all childhood dreams go unsatisfied and the girl of our dreams is just that. Focus on what is likely to go wrong and you are more likely to succeed.
The act of fantasising about success has the same effect as fantasising about sex. If accompanied by certain repetitive movements, the fantasy can lead to a release, making you more relaxed, giving a sense of satiation and an absence of desire to achieve your actual goals.
Stop it. And do some work.