A trader's attitude towards his losing trades is the deciding factor between his success or failure. Losing is part of everyone's trading and you must learn to make peace with your losses. The outcome of your last trade should not impair your ability to take the next set-up the market gives you that makes part of your trading plan. Simply execute your buy or sell with zero emotions for a profit or loss. With that being said, accepting your losses only comes easy after you have been exposed to the charts long enough where you begin to develop a deeper understanding of the market's dynamic structure, after you start becoming consistent with a proven strategy/edge and are able to identify and execute low-risk entries according to your trading plan without the slightest bit of hesitation nor conflict, and effectively using a money (risk) management that allows you to be profitable after taking into account your losing trades. Successful trading can be reduced to four factors: risk on each trade (position size), win rate and reward-to-risk (they are interlinked), and how many trades you take (a large sample size that allows your edge to play out.) That's really it.