I think you might be right. We learn a lot from failure and we should give failure a pat on the back and hang it up on the wall since its from there that we will never make those mistakes again. I read this from a successful businessman who say that when the company employees make failings, they give them a pat on the back and hang it up on the wall since that will help them seek better solutions and to never repeat failures ever again. Also, you should learn from demo failure so you don't lose money in a real account but its from failure that they will learn how to make profitable trades.