I did that on my first day of trading ever and did 13% in total, but maybe I was lucky. 55 trades won, 9 lost (used manual SL), just on EUR/USD. No use of any indicators, but candles and volume. Then started loosing money when started doing something totally different. Then I discovered Ichimoku trader and now I am learning slowly. My approach on the first day was to try and identify the turning point with candles and volume and get into trade, then run for a while, then jump off. I did very small profits, I realized that I could have done more and then I discovered trailing SL etc. Well, I am learning.
I have few months on forex, I am trying to understand this market, but I know for sure it is not about being 100% right, follow the trend and understand price is far more important than any indicator, also stay out in the big news. I never learn something for free always I had to pay, It is not about money, could be time and effort