every trader is different form other so surely they make different kind of mistakes. some are impatient, some put the orders in a hurry and the most dangerous is plying with emotions.emotions are not needed
it depend son the market conditions which does not remain same for eveyrone. it changes within no time giving you either profit or loss. market is completely unpredictable.
what a question. you cannot lose anything which you don't have. you can only lose what you have because the other you already don't have it so how you lose.
i have been in trading business for so long but i cannot say anything about it. sometimes your winning also turns into your loss. it is completely unpredictable.
you must have a plan. i believe one should have 2 plans so that if one back fires you can use your other plan. working without planning is very dangerous.