If you still have the mentality of "never giving up until you reach your goal", then you can choose to repeat your studies for one year, concentrate on mathematics on the basis of stabilizing the results of other subjects, and strive for revenge in this subject in the coming year and be admitted to your favorite university;
If you don't want to waste another year's great youth, whether you choose employment or take the second line, you should change your mind quickly, forget the past and integrate into the beautiful university life.
In short, whether you choose to repeat, choose employment or enter the next stage of study, you need to quickly adjust your mentality, change your state, establish self-confidence and enter the next stage of study or life.