What, actually, is the problem?
Nursing school is hard and most people have to learn how to study, how to manage their time, and how to prioritize to a degree they have never experienced before. I hope you were not in a for-profit, accelerated program. Those are brutal. That's where I got my BSN and I do not recommend it.
I don't understand what you meant about other students, feeling invaded, etc. It's school. Other people attend school. Some people are nice. Many are not. The majority of people are not thinking about you. They're busy being students and working and making it through the next quiz. That's how it works. If you cannot cope with sharing a classroom, how are you going to deal with coworkers, patients, and doctors?
Other people are not responsible for your success or failure.