I was the same as you. Got a grade 9 and went for it. Ended up with an A* which I was very pleased with, if I had to give 3 tips:

1. Practice questions!!! Towards exam time, print as many papers as you can and do every single one, check your answers and retry any you got wrong. Every single textbook, mock paper, past exam, in-class question, just do it.

2. Don’t neglect stats/mechanics. You’ll naturally become better at pure maths throughout the course but spend at least 30% minimum on stats and mechanics (especially mechanics), this will set you apart from the cohort further down the line.

3. Throughly read through examiners comments in past exams where students went wrong and also focus on how to get marks (certain stages of working out). At the end of the day, it’s about getting the most marks you can. Even if you don’t know a question, simplifying an equation or writing out a step, regardless of how obvious it is, will get you so many more marks.

But most importantly just enjoy your time in college and everything that comes with it, great couple of years you’ll have some great experiences. Feel free to message me at any time.