Is making notes a waste

All this time, I made notes the day before exam(I wrote almost the same shit from the book) it took me hours to complete 1 chapter and i didnt even try to make my notes look aesthetic or smt. Recently since my exams are in a week or so and I didn't wanna waste time making notes(I didn't have a choice), so I just started reading the book, obviously I'm going faster now. However I believe notes give me more details so I don't know how I'm gonna score this time by just reading the book and trying to recall stuff written on it. I hope it has the same effect as the notes. So like did I make a mistake?