It's basically how there's only two events when trading, winning or losing. A 50/50 chance, but that doesn't necessarily mean that losing is bad, there are various types of losses, ranging from controlled losses to total loss. Experts don't always win and can always control their losses because they know that the chances are always 50/50, it's rather easy to know when you're going to lose and not.
The chances of 50/50 in trading is implicitly confining that trading is based on probability
. It is tug of war to find definite win and if that is not possible then finishing off the trade with controlled losses. When anything is possible in trading then, we should have control on everything that is the key thing here; with that key thing, we must need to have to minimize the losses and maximize their chances for hitting profits.
it's not like the more you lose the higher your chances of winning are next time, the odds always reset, whether it be every second, minute or hour.
But, if you learn from your mistakes then you will not repeat same mistakes then the odds for losing a trade will be getting lower which means you can hit profits more easily compared to your previous trades. This is what experienced traders are doing. The probability nature of trading is controllable and it is possible for every trader to control it over the experience.