To optimize the robot, I have to consider the last few years

[OmidRezazadeh]

Hello, I change the parameters of the robot to optimize it
I optimized one year, the robot turned out great
But if I take the test of the previous years, it will be completely lost

How many years should I consider for optimization?
Thank you for your guidance

[Temmy 25]

I think that is the reality of trading, what works yesterday might not work tomorrow.
Unless you have a strategy that is timeless... evergreen so to say

[Temmy 25]

I once had a strategy that made about 100% in April to August last year with just risking 1% per trade, also about 15% max drawdown (strategy tester)
But was not even profitable every other time in recent history with the exact same parameters.