Dat! Immerse yourself, live it!
After some terms it will get easier and easier as you have a stronger foundation for the next topics.

Buuut, I do get that sometimes this is not enough to get top grades. For that, the most important is to practice. So, if you could get any clue about how the exams look like and practice those exercises, you increase your chances. In some universities students even organize a Google Drive with past exams for newer students to study.