When you are not sure how to make use of stoploss for your trades then it is highly recommended to have exit levels on both profit and loss directions. It means you must have to be prepared when to exit when market moves on. Usually all traders will have exit point for profits zones and might never think about exiting at losses which leads them to keep their position opened and if they are lucky enough then market itself rebound to get them profits otherwise exchanges will liquidate them when there are enough margin available to keep the positions open.

You do not need to have to make use of stop-loss orders when you are not familiar on it. Just fix an exit level and keep watching the market and when your exit level reaches just sell and close the trade. If you keep waiting then your losses may grow up. So, determine your exit on loss levels with technical analysis and then go trading with that.