1/ Lack of Discipline— a) Not sticking to one strategy, b) not respecting your trading rules, c) not sticking to your plan.
2/ Lack of knowledge—Inadequate understanding of the market, trading strategy, financial instruments, and fundamentals can lead to poor decision-making.
3/ Not having a mechanical trading system—This leads to emotional trading. Decisions driven by emotions like fear and greed rather than rational analysis result in significant losses.
4/ Overtrading—Taking many trades will affect your decision-making ability and lead to poor decisions.
If there are other reasons why traders lose money, share them with me.
Once you're considering trading, there are many ways traders can lose their money while on any trade, there is risk in it and anything that has the potencies for generating income must also have some level of risk being involved in them, we can't void making mistakes and through this as well, many are still missing out on their trades when they realized making a mistake, we are to only ensure that we are trading base on what we can afford to lose and base on the level of our understanding of it, as another thing to consider, obviously not all traders will like to risk their money on trades and loose it, but in some circumstance, it becomes unfavorable and things can't be avoided.