Any trade has to be taken with a reason. The basis could be signal from technical indicator, fundamental analysis etc. No trade should be taken without following some set of rules or logic. Learning technical analysis is recommended. However, technical analysis is not a point and shoot method where following a rule will guarantee profits. Learning when a system works and how to work the system comes with practice and HIGH cost. Without entering the waters and without willingness to lose some, profits cannot be made. But the intelligence lies in limiting loses and maximising gains. This cannot be fully taught but is learnt by experience with real money. Suggest you try 50 SMA or ATR stop loss (it works for me).