To successfully trade in the forex market, one has to think in probabilities. You have to develop an edge or a trading system that you are confident in and when you follow your edge the probability of certain outcomes are higher than other outcomes.
I truly believe that a winning edge is created by combining fundamental analysis and market sentiment with technical analysis. One can think of this along the following analogy: Fundamental analysis and market sentiment give you the direction to trade and the technical analysis gives you the trigger to put your trade in action.
Get a clear picture of the fundamentals and sentiment that drives a currency and use technical analysis to execute trades based on fundamentals & sentiment.