Beginners should use indicators as simple and easy to understand, many of the traders actually prefer MT4 standard indicators that provide an opportunity for a certain period, there are Bolinger Band, Ema, RSI and Stohastic, some of the above indicators are very popular, you can find how each characteristic - on the web. I am convinced by that indicator, as long as the right mastery can generate profits. Indicators are very important for new traders and they have to work according to them because they do not have much experience and trading is very dangerous for them and they can face losses and most new traders lose this market so they have to follow RSI, bollinger band and MACD.