While I think I understand the motivation behind that comment of yours, I believe a loss should be taken for what it's. It should be seen as a loss. We shouldn't sugarcoat it. We should recognize that it's a part of trading. There's nothing wrong in accepting it and learning from it, like you recognized too. Wins don't teach us introspective lessons or make us reassess our trading strategies. Every trader wants to win everyday and sadly, no trader likes to experience losses.