Hello Hamselv,
Glad to hear from you again.
In some of my courses I show how I go around the Demo testing.
I generate strategies from the beginning of the Historical data that I have, and for end date I use the data, one month ago.
After I select the strategies I want to use, I go over Monte Carlo and all robustness test, I include this last one month and see which strategies performed well.
It really takes a minute to do that, but it is actual testing for one month.