Some useful links:
Apply for provisional licence https://www.gov.uk/apply-first-provisional-driving-licence
Theory test booking https://www.gov.uk/book-theory-test
Practical test booking https://www.gov.uk/book-driving-test?step-by-step-nav=e01e924b-9c7c-4c71-8241-66a575c2f61f
Theory test practice https://www.safedrivingforlife.info/free-practice-tests/practice-theory-test-for-car-drivers-1-of-2/
Hazard perception practice https://www.safedrivingforlife.info/free-practice-tests/hazard-perception-test/
The Highway Code https://www.gov.uk/guidance/the-highway-code