Graduation can be a time of great excitement and also a bit scary and intimidating. In many ways it feels like the final transition into adulthood. You've shared really great advice to prepare for this time.
I think for college you get out what you put in. What flew through high school doesn't work in college. It does require a different mindset and the sooner you figure that out the better.
This is actually true! That's why I'm starting to blog now as a college student to prepare myself for the upcoming years, and building my passion career before I graduate!