1. Taking early classes. If you take an 8am, you’re more likely to skip it. Which is also a bad idea, especially when you have to pull all nighters to learn Calc 2 because you only went to class two days a week (I might be speaking from experience).

2. Using all of your badger bucks by September: college poor is a real thing (again, maybe speaking from experience ...).

3. Fearing your Resident Advisor. Your R.A. is probably awesome, but don't push their limits ... and let them do their job.

4. Fearing your T.A. Your T.A. is also probably awesome. Be friends with them. Chances are, they'll become your best friends.

5. Shacking. Like Nancy Reagan said, Just say no. Especially your first semester.

6. Going for every guy who hits on you: Just because he's cute doesn't make him any less creepy

7. Drunk words are NOT sober thoughts.

8. Not locking your dorm. Trust me. You'll thank me later when your favorite sweater is still in your closet. People like to "borrow" things and "forget" they have them.

9. The freshman 15: It’s real. So real. I don't think you understand. It WILL bite you in the ass ... which will in fact get bigger.

10. Ambulances: Avoid them at all costs. Just do it.

11. Thinking you must always go out: Staying in on a Friday night is not the worst thing ever.

12. Calling pizza hut: As tempting as it may be, ordering take out at midnight is never a good idea. Refer to number 9.

13. Your dress is too short. And so are your chubbies.

14. Just because it's against school rules doesn't mean you shouldn't do it. (For example, climbing to the cupola or going to the school's underground tunnels)

15. Blindly following the crowd. Do your own thing even if it’s weird.

But if you do make mistakes, it's okay. They make the best stories anyway.