Too many varieties (only 2 positions at most)The position is too heavy (no more than 5% each time, and the total position is controlled at 10%)Frequent trading (only trading twice a day at most, regardless of loss, regardless of opportunity)The stop loss is too wide (the maximum stop loss is margin)5 no stop loss is set (stop loss must be set after inspection + stop loss cannot be set too wide)The trading has not been stopped for many times (the trading must be stopped to forget the loss)