Hmm I think there is a possibility that your colleague is involved in the world of trading by bringing the wrong approach, I can't be sure or guess about what the problem is, but in some cases usually the cause of experiencing significant losses is one of them because they have the wrong mindset such as thinking that trading is an alternative to getting rich in a short time where they put too much hope so that they always make decisions that tend to be too hasty without careful consideration to identify. and maybe they are traders who have not fully controlled themselves such as experiencing excessive emotions when experiencing losses which when someone is trapped in emotions and does not have the ability to control them, they will usually try to do various things based on emotions, and maybe they are also traders who have not fully controlled themselves such as experiencing excessive emotions when experiencing losses where when someone is trapped in emotions and does not have the ability to control them, they will usually try to do various things based on emotions with the aim of recovering the situation where these actions are certainly likely to make a trader end up experiencing more losses to MC, or other factors.

On the other hand I think we should have understood from the beginning that however trading is an activity that has the possibility of risk that can never be avoided completely and this is why we always say and advise to put a lot of caution along with applying risk management firmly, meaning that it is normal if trading does not always give you profits and if you feel that you always experience a lot of losses without any change then yes maybe trading is not the right place for you.