Did you completely disable windows defender and right click run as admin on trainer?
Run trainer. Run game. Get into game. Alt tab to desktop and press f1 to activate trainer. Alt tab back to game and use options.
If still says cannot find game then either something is blocking it or your game version doesn't match and you should zip/rar your game .exe and attach it here.
Yes, insta-build works for enemy too, best to disable AI before using that GL