1. You can join the Student Union/Youth League Committee/community as appropriate. It's not much. You'd better find someone you like and take care of your work seriously. Many people will scold these groups. Working there takes a lot of time, but you can also learn a lot.
2. Don't listen to those who say that college means "you can play for four years", and decide your own position. There are various methods in universities. Some people spend their time playing computer games, some people spend their time in love, some people spend their time playing, some people spend their time doing nothing, and some people spend their time in the sea of books. I think it's not good to be alone. It's best to try various ways. Learning lessons, learning to be a man, cultivating self-cultivation, giving full play to it properly, and occasionally degenerating are all fine. As long as it doesn't have much negative influence on life and study, love is good. Love in college is very beautiful.
3. Identify the people around you, including teachers, classmates, siblings and friends. Choose something worth communicating, you can focus on cultivating feelings, make more contact, and learn a lot from it.
Part-time job is not recommended for freshmen. In fact, the part-time jobs that freshmen can do are basically coolies. Just for tens of dollars a day. Compared with a university with only four years of life, it is not worth earning these tens of dollars. If you have time, you can dabble in all aspects of knowledge. University libraries are rich in resources, so don't waste them. If you are really free, get together with new and old friends. It's hard to be together after graduation. Everyone works in a different city.