It is very difficult to say. You need to find the best time frame that suits you by practicing on your demo account. Some people like to trade with higher time frames like daily charts, H4 & hour. But some like to trade with smaller time frames like M1, M5 & M15. If you need a lot of small trades in some time, you have to trade in a smaller period of time. This should be correctly identified & added to your trading plan. The third truth is that creating a system is not that difficult. What's difficult is following the rules you set when you developed your system. Many articles sell systems, but we have not seen anything that teaches you how to create your own system.