The formula for success in forex trading is to strike the right balance between how much you risk per trade and how much you earn. There are no set standards for the ideal risk-to-reward ratio.
Forex losing streaks or slumps are completely normal and an unavoidable fact of trading. FX trading is a profession that hinges on speculations and probabilities, so instead of harbouring the misconception that losses won't ever happen to you be realistic and learn how to cope with such trading lows.
Maintaining a log of your trades on a regular basis is a quintessential habit of all successful traders. A trading journal or logbook records your trading performance, psychology and habits for future analysis.