Next week is empty in terms of exams for me, I only have 2. But the other week, boy!
My exams are consecutive like:
I'm somewhat lucky - I have two exams on Monday and two next Friday but a three day gap between, so enough to do some extra revision for the Friday exams and the two I have the week after (which I have a two-day gap between!). Revision-wise, I think I may have done slightly less than I should've, but what is done is done and I'm just going to see how things pan out. I do feel sorry for those who've got exams on consecutive days or don't have gaps like I do - just do your best, and if you don't do that well, always remember you have the option to resit!
It's never too late, just get your head down.