IM BEING INDUCED!!

Sunday night, Monday night, TUESDAY NIGHT!!!! Finally, that's all I have left💙💙 
My doctor has told me because of my GD I'll be induced at 6pm Tuesday evening but hasn't explained the process to me at all! What should I expect? Do I eat before or is it one of those things where you can't eat a few hours prior to? Kind of thrown off though because she said "you'll have a baby by Friday at the latest!" Is it really going to take that long?!?!