How to succeed in IB math HL?

I am in IB1,and currently getting around 55% in math Hl quizzes,my teacher says that I am improving but doesn’t why I’m not scoring better in quizzes,and I don’t as well.So what is your way of studying math HL?Any tips? and what can i do to improve ?it is the near the end of IB1 and I need to make sure I get predicted at least a 6

General thoughts:

What you are doing isn’t working, so you need to get more help.
That could be: Study groups, teacher office hours, tutor, online resources

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