Must be PPL I'd have thought; CPL / ATPL exams require the 5-600 (or whatever it now is) hours of structured study with periodic tests.
Garfs - I'm not sure why all the pressure though. Who're you doing them with, and why
If I dont sit the exams, it goes down as a fail, so I may as well sit them.
?
Maybe it's just been the places I've done them over the years, but if you want to take an exam you take it, if you pass you pass, if you fail you fail.
It is possible to do them all in that time mind... I started my powered flying with a fixed wing PPL at a less than reputable US company some years back. "PPL and night rating in 21 days" was the claim, and as a super-keen and fairly naive ex-A-level-student (that means almost broke btw) I paid what little money I had, booked flights so I'd be there 22 days, and off I went. An exam every two days, it was a nightmare yes what with everything else going on, but with a good timetable or plan of what you're doing and when it is possible... though it obviously does help to know that you do have exams coming up on a certain date!

Just remember you do also get three attempts at each paper though so no huge pressure yet!
Fingers crossed mate