I think the best trading strategy is to concentrate in the mind that I have a good system that you can use and this system is strong enough for long term conditions than we have to be able to handle all conditions in forex trading and then understand how experts do research but if you can learn and following this rule you can trade in this market without fear and stress. I also have many trading strategies in my trading life. But any strategy does not guarantee to get 100% profit in your trade. But if you have good knowledge and experience, you can increase your level of success.