Do you have the official App? I did pass first time but this was the only resource I used and some youtube videos to understand Hazard Perception.
You may need to make a timetable and I would recommend you revise for at least an hour each day so you make steady progress and feel confident. Look at your test certificate - it should give you the topics that you did not score well on. Then use this as guidance for how to improve your score as you will be looking at the areas you struggled on.
Since you scored so well on HP, you've mastered the technique so it will be easy for you to score well again on the HP part of the test.
Spend the summer holidays and time after you've finished with your exams to work on this and then book when you feel confident. You've got this! 🤗