Ensure that you utilise all the support facilities that you can in your first year too. I know for most universities, they offer non-assessed Peer Assisted Study Sessions (PASS) classes for first years (which aren't compulsory) but are a great way to get introduced into your courses (and tertiary education as a whole) as well as to stay up to date with content. I know that I had to hop around through a few different sessions to find tutors which taught in a way that was coherent to my own learning style.
Some faculties even have specialised librarians/tutors that can go through essays/assignments to check structure/spelling for first years (more common in the business faculties rather than the science ones).
These support programs exist especially to help first years transition into university, make sure you use them as much as possible as they're normally removed in second year (and thus, your first year is probably the easiest to get a high gpa in)!
Sometimes it's better to set aside some time to find the right study method that works for you rather than just spending hours at a table trying to rote-learn everything. The first few weeks for first year courses are quite slow, this provides the perfect opportunity for you to try different learning techniques before things start to ramp up. Semesters go by quickly, one day you'll be in the first week and the next it'll be exam week - always try to keep up to date!!
Don't fall into the trap of not attending uni (as many do after the second or third week when they find out that it's not like school/attendance isn't compulsory) and keep on grinding it out! Set your goals high, put in the work and with a bit of luck, it'll all work out!
ETA: Welcome to MSO! If you have anymore questions or seek further clarification, you're more than welcome to ask!
Good luck!!
ETA2: Don't put things off and say to yourself that you'll "catch up in the mid-semester break" - that never works out well!!