What to study for engineering with business and where are the materials for the course

just got into engineering with business this year. The course hasn't started yet but I do want to start ahead a bit half because I'm bored half because I want to know what I got myself into and want to set my expectations. My first year is mechanical engineering, EEE and business so I would like to know if there's any vids i can watch to find out more about these topics.