>>3976567
The easiest way for a newbie is making a fear_token or whatever inventory item. Give (35*seconds) of them to the actor when it becomes frightened, and at the end of the see state do

>TNT1 A 0 A_jumpif(countinv(fear_token)==0, "Unfrighten")
>loop

>Unfrighten:
>TNT1 A 0 A_ChangeFlag("FRIGHTENED", FALSE)
>Goto See

You can do it much cleaner ways with zscript or anonymous expressions in decorate but you'll get  there eventually.