In an interview after winning his 4th straight US Open tennis title and 12th Grand Slam title, Roger Federer was asked how he kept his game up and managed through good days and bad. He responded by saying that as he started out his performance fluctuated widely between really good or really bad days. With training and experience he narrowed the gap so that even when he plays bad its not so bad while maintaining his good games.
This pattern could be observed in markets too. Notice the emerging stock markets with their volatile performance. You get the really good years then the really bad years. However, in more advanced markets such as Europe and the US, performance is more stable, i.e. less volatility in financial terms.
As we start this holly month of Ramadan may God bless us with good days and less bad days -but that will take some training and experience!