Lots of fun for most people.
What are you worried about specifically besides the unknown?
Assuming you are talking about Ohio State, your campus is big. Study the map so you feel comfortable walking to your classes or taking the bus. Maybe visit again over the summer once you know your dorm and then you won’t have to worry about that.
If you have any flexibility, consider making your first term a little lighter or at least one “fun” class as you adjust to school.
Get familiar with terms. I remember I hadn’t heard the word “syllabus” until I went to college. You’ll be given the information for the text books you need to buy before class. Try to get that all done well ahead so it’s another thing you won’t have to worry about.
Live in the dorm.
If your parents didn’t go to college you are at a slight disadvantage, because they don’t know what to expect either. You can ask questions here without worrying about feeling embarrassed.
If you like football at all buy season tickets! Big Ten stadiums are fun. If you and your roommate seem to have a connection, or someone else you become fast friends with, buy tickets together.