NBS ACF and BBA

so i got into acf (my first priority) but i might switch to bba (filled the form and everything), so i might be in acf or might be in bba. either way, I heard that the courses are same in the first few semesters. can u guys share any courses or youtube videos where i can learn a bit about what you will be learning in them? like i want to start studying a teeny tiny bit already, cause i know i’ll start procrastinating in university so it’s better to start studying now.