In the UK driving test, hitting the kerb is seen as not having full control of the vehicle, usually in the 3 pt turn, or reversing round the corner.
However I have mates that have hit the kerb, and just continued their test and still passed. Don't worry about because if you do focus on that, then it increases your chances of it actually happening.
Wow the UK tests you guys on reversing around corners? The American road test is much easier.. oh well.
Congrats dude_se on passing the written exam!