Since you’re using dashingdon, there should be a box somewhere when you’re updating that talks about a save system. All you have to do is check that and then add this code:
*sm_init mygame | 3
at the end of your startup file right after the *create section (or the achievement section if you add any achievements later on). In your case, make sure it goes between *create bad 0 and the “Welcome to my very first ChoiceScript game!” line.
Just make sure you change the mygame part to your game title, though. You can find more about the save system in this thread. ChoiceScript Saving Plugin (Update: Sept. 2019) 