Cie psychology resit...again

So i did a resit last year for my AS and got an A. In year 13 i fumbled and got a B in total. I wanna resit psych again but i heard you have to resit all four papers. Can I just resit the A2 papers??? I have a very important trip on the dates for AS and A2 resit dates seem to be right after said trip. Honestly I haven't even studied at all I feel really trashy. Should I resit or not?? Im taking a gap year and my a level results are A*AB. If only I had that one A....

Cambridge International have a rule which states that the marks from you AS exams must be carried forward to you A2 exams within 13 months. So there are scenarios where you could just resit the A2 papers again, but it depends on the month in whuch you sat the AS papers. See Carry-forward regulations supplement for Exams Officers and centre staff for the rules.
If you "haven't even studied at all" then resitting would seem pointless. What degree are you hoping to do, and where?

you're right it does seem pointless. After discussing with the school counselor and my parents i decided to just send it to be remarked instead.