I've literally just got out the test centre centre saw this on the bus home...
I passed!
Having done a number of mock tests and hazard perception clips for a couple of minutes in the last day or two I can say five days is enough.
But plan your revision and be disciplined.
I may have got 45/50 (done quite good on the HP) but I'm concious that had I been just two off I'd have hit the pass mark, one more off that could have been a fail.
Try and know your basic principles of driving and your Highway Code thoroughly. Understand the why behind it and not just swallow up the rules by rote.
Your theory doesn't stop at the test centre. You need it to be safe on the road and not make faults which will fail your practical test.
Sounds naff but think of your driving career ahead.
Good luck OP!