Everyone do their best to win with all trades that they do.
But being invested to your emotion is going to make you lose even more. That's not a good thing as a trader because you're going to overthink and that emotion you're feeling will make you want to be perfect with those trades that you do.
And you have to remember that no one's perfect even done with some strategies, it's just not enough and there will be days that you can't win against the market.
Emotions and lack of knowledge are the top reason why many traders still suffer from a big losses and I see that as a normal scenario for every trader. We can be good sometimes with our few trades but remember, this is a risky way of making money so we cant guarantee any profit. Expect for the worst when you trade carelessly but if you do it properly with good strategy, then you can be more profitable. Being a trader is not an easy job, do your best always to find the best entry and dont focus with your emotion.
When you do something that you don't know of, you can't expect to be productive with it and that's why lack of knowledge is one of major reason.
Trading carelessly without any plans of learning from it is throwing money to the exchange and you expect nothing in return. But if you have plans of doing yourself a favor and you want to learn with the futures, you'll do something about it.
While this is true and we have examples of this almost every day in the forum when there is a bull market, this does not mean that it is easy to understand as it makes no sense, if a person tried to practice law without the necessary knowledge everyone would think that such a person is wasting their time, and in many cases committing a criminal offense, however when it comes to trading someone can try it without any idea of what they are doing and yet this is considered to be normal and even a profitable strategy.