Trading is not all about indicators, its supply and demand and its market sentiments, but its all about how much you know trading and how to perform it at its best. Experience matters the most.
Knowing the market is the most important thing for a trader and if a trader doesn't know the market very well then mastering 100's of technical indicators won't help him/her to make any profit from trading.
The trading indicators are helpful only when someone knows the market well and has enough experience to make trades that could give him/her profit and at such stage a trader might take some help from trading indicators but those indicators alone can't help a trader to be profitable and that's a truth.