Hello, I am a junior in a school. I think your question is a very free thing. If you are near home, you can go back once a week. If you are far from home, there are many people who go back once a semester! Or go back on holidays such as May Day and National Day. You can do anything! It's up to you. Ordinary universities don't care where you go on weekends. . You may be late for class, but everyone else is free.