It depends how you feel comfortable way of learning.
I done a intense 1 week course with the RHA and passed both modules first time.
All I done was revised the multiple choice questions so I knew them parrot fashion.
Then the written test all the answers are in the books. It’s an open book exam. You can’t remember the whole transport bibles. You need to know where to find the answers or information in the books and work out any formula and calculations or anything you need.
If you have done any higher studies as a adult and can learn information your self you should be ok mate.