Try 3 clicks in fast succession. Worked very well for me. I swotted until I felt ready and booked the test then. People can cancel up to three days before without losing the fee and they do often cancel late so just check the website regularly and nab a sooner date when you feel ready. It’s worth googling the most difficult theory test questions. Some of them are deliberately tricksy! If The online practice theory questions are almost all car related. You’ll want the book for the motorcycle related ones. My favourite was what to do entering a tunnel, there were 3 perfectly reasonable sounding suggestions about lights and distances and one that said ‘tune to the radio station advertised’ - that was the correct answer, I don’t think I’ve ever seen that sign. I still have some on my phone, they give you an idea of the way they might ask the questions on stats etc You will also undoubtably get a question or questions on different types and colours of road markings which are obvious when your driving but not necessarily so sat in front of a computer. Enjoy!