Hi Edgar,Eyeball have explained it well,It is very likely and possible to make a living only out of trading,but as Eyeball said,it demands time and your devotion,you can do it with devout devotion, diligence,perseverance and patience. Remember Rome was not built in one day,you would definitely get down on many occasions,but pick you self up and dust your way out if you happen to fall,continue to upgrade yourself by consistently learning and practicing and you would find your holy grail if there is 🙂