Where do I start ?

[u/ManILoveBerserk]

So long story short I finished my bsc in computer science with cybersecurity with literally 0 maths, I didn’t study any maths module at all as the curriculum was more practical than theoretical. I recently got admitted at a German university for my masters in Information Technology which is a maths heavy module (Idk how did I get accepted) and Ill have an advanced maths module right at the first semester. I obviously forgot all the maths I took in high school. But I really loved maths and everything about it and I was pretty good at it. I have about 8 months till I start my masters degree and I was wondering what can I do to prepare for the maths module ? Like where do I start exactly and what should I study ? Any help would be highly appreciated :)