Stop loss can make us earn good amount of money if we know how to use it. Some people thing that if we get SL we end up losing. But proper way to use SL can also make us earn money still. For example if you have gain 50 pips profit already and your analysis say that it can go up 100 pips. You put your TP to 100 pips and you put your SL 40 pips. In this way you can still end up earning 40 pips and 100 pips if you get TP.