However you decide to test your strategy, you need to understand the results you get. Intuitively, you would want to judge the results according to strategy's profitability, but you should not forget about other important parameters of successful trading strategies. They are: low drawdown sizes, short drawdown periods, high probability of winning, high average reward-to-risk ratios and big number of trades. Ideally, your system should earn equally well on bullish and bearish trades, the resulting balance curve should be consistent and uniform, without significant drops or long flat periods.
Forex strategies that are traded based on strict mathematical rules with no ambiguous conditions and no important trading decisions to be made by the trader are called mechanical. A good example of a mechanical system is a moving average cross strategy, where MA periods are given and positions are entered and exited exactly at the point of cross. When working with mechanical trading strategy, it is easy to backtest one and determine its profitability. You can also automate such system via MetaTrader expert advisors or any other trading software. The usual drawback of such strategies is their lack of flexibility before the fundamental changes in the market behavior. Mechanical strategies are a good choice for traders knowledgeable in trading automation and backtesting.
With the unpredictable nature of forex market, you constantly need someone who you follow and look upto, specially if you’re an independent trader or just starting out. There are many scammers out there who claims to be what they are not and are faking their profile and their experience, so the first thing is to be beware of any suspicious accounts and do your own analysis when you’re choosing someone as your mentor to guide you in this highly unpredictable market.

If the indicator can establish a time when there's an improved chance that a trend has begun, you are tilting the odds in your favour. The indication that a trend might be forming is called a breakout. A breakout is when the price moves beyond the highest high or the lowest low for a specified number of days. For example, a 20-day breakout to the upside is when the price goes above the highest high of the last 20 days.

Price action Forex strategies are the currency trading strategies that do not use any chart or fundamental indicators but instead are based purely on the price action. These strategies will fit both short-term and long-term traders, who do not like the delay of the standard indicators and prefer to listen as the market is speaking. Various candlestick patterns, waves, tick-based strategies, grid and pending position systems — they all fall into this category: