*Must there be losers*

There is must be losers as i think that without the 90% losers there will not be any earners in forex market and there will not be 5% earning traders and that's why professional traders do not want to share their profitable strategies as they fear that many traders around the world do their strategy then because of many traders do the same thing then the pairs go in the opposite direction then the profitable strategy changes to worthless strategy am i right ? or there is something that i did not understand it ?

trade loss k begair tou mumkin nai hai aur hamain trend ko use kar k hi trade karni ho gi ta k loss kam ho saky aur emotion ko kabo main rakhna ho ga ta k achi trade karny k kabil ho saky gay aur earn ho