Don’t worry about it, just go back to your usual routine, keep in mind we weren’t designed to be in ketosis forever, just seasons/periods, to avoid this type of binges i recommend having a carb or two days a week (same calories) ; fruit and rice (japaneese if you can) , and plan your icecream day, it is not compulsive if it’s planned ;).
** mind the sticks, sometimes they expire way before planned.
3 fasting days should get you in ketosis.