First of all, understand the relevant regulations of the school make-up exam and retest.
Different schools have different regulations on make-up exams and retakes. Once you fail, you must consult the school's make-up and re-examination regulations, and also analyze whether this course is a compulsory course or an elective course. You know, not every course can be retaken. Generally speaking, the school will only arrange make-up exams for compulsory courses. If it is not a compulsory course, there will be no make-up exam. If failing this course will not affect graduation, there is no need to retake the exam.
In addition, if this course is very important and has high credits, which may affect graduation, then try to retake it!
However, it must be noted that the make-up exam score may be lower. If the thesis fails, so do the students after the make-up exam. Usually, the paper score may also be low. Although the make-up exam score is low, it is better than failing the exam!
Secondly, carefully analyze the reasons for the failure of the exam and seek ways to ensure that you can pass the exam smoothly in the future.