After many years of experience, I realized that losses are part of the proccess trading. Losses happen to the best traders. The best traders I know do not have a 100% win rate.
After many years we learn a lot, that is correct but still, we lose. Why? because there is no perfect trading strategy been made in a volatile market and even if we are trading for 10 years or 20 years, no way to escape from it. Indeed, every mistake and loss is a learning opportunity but as I said, this won't change the situation, losing is part of trading.
When I take a loss, I sit down in order to:
a) review the trade
b) learn from my loss
What do you do when you take a loss?
The same thing I did but I still lost, and repeated.
This is how trading works and no matter how hard not to commit mistakes and losses, it still happens. After losing, we take time to relax rather than make an aggressive move as it won't lead us in the right direction but it brings us to the dark side. That is why we have to be calm and easy when trading because once losing our patience and emotions, the more we become a loser.