I took calc 3 online after taking 1&2 in high school so it was a new topic and a new pace for me. Keeping up wasn’t to hard as the class set up a discord and we could go to each other for help. Going to the professors office hours is really crucial though if you really want to get all the material. In all my courses I’ve gotten the best knowledge from either the lab courses or the office hour sessions. I wouldn’t suggest chugging everything even though it can make the course super easy but I would suggest it as a backup. There have been many times when it was past office hour time or really close to the due date and no one could figure out the homework, chegg definitely gave some really insightful work that helped me understand problems and formulas a lot better. Remember to stay focused and ask for help from who ever you can when you need it!!