Basically theory test is pretty simple. i passed mine just under two weeks ago and i study full time. The best thing for the hazard perception test is sit in the passenger seat of like your mum's car or something and on your journey just identify all hazards that you come across. this will make your reaction time gradually improve. I actually read the official highway code last summer and jut did loads of practice question like a week before my test. Its all about practice, practice, practice.