Stop loss is definetely a must for every trader. loosing 5% much better than loosing 95% for sure. You can use it in the beginning of a trade. Also if you can move the stop loss to profit zone when you are in profit. So no matter what happens you will be in safe side.
stop loss will give us a safe trade and minimize the risk in our trading activity
because the real trade will always think about how to reduce the risk, wich mean cut our lost short and let the profit run