This is something that I have tried and have had success with after bad trades to help get in a better mindset. https://www.daytradingpsychology.com/positive-neuroprogramming-for-traders/
Well said. Just have to stay calm even if we incur losses but at the same time, spend some time reviewing as to why you made a loss and try to avoid those mistakes in future.
Trading is not about avoiding losses at all costs. It is about realising profits. Incurring a loss might not be a mistake. So, why you made a loss? Probably you've exited from a trade that wasn't working. Was that a mistake? Should we avoid that "mistake" in the future?
Forex does not give us same results all the times, some days we loose, while on others we might end up winning huge. Stay calm in both cases. Especially, when there are losses, need not panic. Rather observe where the mistake is and rectify it for future trades.
It’s better to have a realistic frame of mind throughout. Also, have a full proof risk management system in place.