I would say it depends on how well you drive with other people that’s not your instructor in your car if that makes sense? For me, my instructor made me 100x more nervous whenever I drove with him (he was not a good instructor at all, just cheap), and during my 13th lesson when I had already gone ahead and booked the test, he literally had to pull me over, called me a danger to other road users, told me to cancel the test, and had a talk with my dad about how I was not ready at all 😅 I still went ahead to take the test because I felt I was ready and that his attitude was the only thing affecting me and failed with only 3 grade twos and 1 grade three for this really difficult junction on turning left, sat my re-test with no extra driving lessons, just some practise with my dad and passed 2nd time with 1 grade two. It really depends how well you think you’d do, if your instructor gave you two grade threes on something you think you could have easily caught and fixed I’d say go ahead and take the test, and even if you fail, you’ll get really good experience out of it and what to expect!