According to your present situation, if you are not satisfied with your present university, you should repeat it. If you can, you don't have to. Each has its advantages and disadvantages.
3, the benefits of repetition:
1) Repetition can make you get better grades and learn new things by reviewing old ones.
2) Repetition can make you go to a better university, and maybe your life will change from now on.
3) Repetition will make you feel stressed and improve your ability to control yourself.
4) Repetition can make you know your true friends through thick and thin.
5) Repetition can give you a chance to choose again.
4. Disadvantages of repeated reading:
1) one year behind peers 1 year.
2) The pressure of repetition is high.
3) Repetition is risky. If it doesn't play well, it may not be as good as last year.
4) Repetition also costs money, one year more than that.