For effective stop loss we must first see whether it is a very volatile trending market or market, because every stop loss is never a good stop loss in a very volatile market, it will always get profit and close unnecessary trading . SL is not important because it opens a good trade, the better your trading decisions are, the better is the trading and the more the possibility of getting a good profit, I personally never keep trading that loses too long if the general market trends do not agree with my trading, sometimes keep SL closing down good trades too fast