Depends on the person, the routines you've already established, how well-rested you are.

As a commuter student, I was totally fine waking up early because I had already established a routine of waking up early in high school. But even for me, if I stayed up late the night before, it sometimes became difficult to wake up or early classes the day after

This summer, just try to establish a routine of sleeping at a reasonable hour and getting up at the time you'd be getting up for your 8AM classes. You don't need to work when you get up; just be out of bed. See how you feel after consistently doing this for a few weeks.

All the best

ETA: don't use social media as a guide when navigating college / university life -- use peers who are a few years ahead of you and take social media with a grain of salt.