How "experienced" are NU's students?

It's really embarrassing, but since I was a int'l student that needed a full scholarship, during high school my life was basically: 1. Maintaining a high gpa, 2. ECs 3. Participating in many international competitions trying to get honors.

In other words, let's say I didn't have time to party, have a boyfriend, enjoy life... I was expecting to finally live after getting accepted in NU and going to parties and etc, but now I feel afraid of being "behind" everyone "romantically and sexually" speaking... How do you feel NU students (specially freshmen) are in this sense?