Dear JazzO,
Congratulations on your graduation.
I will assay a few words about the beginning of your college days based on my experience and those of friends.
It will be a whirlwind and you will probably become overwhelmed by the conviction that there are all kinds of opportunities that are "out there" and which you are missing!
Fear not! The feeling will pass and you'll gradually get the hang of it all.
The personal freedom of college may leave you a bit lightheaded. Try to set up and follow a schedule for study. Your efforts will pay off big time -- with better marks at the end of first term and a solid base for your GPA.
This will gratify your parents and amaze your professors!
Good luck and all best wishes for your future,
wow.