Long opportunity on gold

since gold was on a bearish trend it seems like price arrived at a major support for gold and we can see alot of bullish engulfing candle stick. I drew a triangular pendent and waited for the price to breakout and it did. So im placing a long trade and my stop loss is a bit high but theres a reason behind that.
I place stoploss not depending on my account balance but strictly pending on where i think my idea is wrong when price arrives at the stoploss.