Normally, trading itself is not even something you should always expect 100% win, strategy is just there to guide you. I know so many people who have made the mistake of thinking that once they have the knowledge and strategy, they are already set for big wins, but it is trading, and you are only taking advantage of possible fluctuations, so you really want to put in mind that losses are also possible, but how you are able to manage them is what would determine how good you tend to do eventually.