Indeed, what is true is that when we open a position we have to use stop loss and take profit at the same time. When we open a position and we don't use a stop loss, in my opinion it doesn't matter as long as you are really sure about the trend movement. When you are sure that it is true The price is in accordance with your predictions. However, when you want to trade well, use investments safely, you should use Stoploss just in case. If an unexpected problem happens to you