How can I backtest a mechanical system for 6-12 months?
Your question requires additional information. An answer as vague as the question is to use the Strategy Tester.
Upon adding additional information, you can manually back-test systems by simply using the scroll bars. There are a few Manual Trading Simulators with-in the code-base. I'll try to find some for you, but encourage you to look also. I don't think it's wise for anyone to tell someone else if something would/could be difficult for them. Your background/desire/free-time etc would determine if leaning something like mql4 would be difficult.
Here's 1: https://www.mql5.com/en/code/9220
Here's 2: https://www.mql5.com/en/code/10715
Here's 3: https://www.mql5.com/en/code/10142
Can smbdy help me? Thanks in advance! God bless you!
MT-4 can back test only EAs, but I,d like to back test every mechanical system I,m trying...or smbdy knows how can be used MT4 for that purpose. I don,t know programming in MQL languages, but I can try if smbdy encourages me that it,s not so difficult. How much time could it take?
Thank you and God bless you all!