If there is a graduation project that is not suitable for you in real life in the middle of writing, I don't suggest that you change the topic and re-write the paper. Because the graduation thesis involves many knowledge points, since you have finished half of the graduation thesis, you have the opportunity to continue to finish the remaining half. If you give up halfway, the previous preparation will be in vain, and it will take too much time to rewrite the paper.
In most schools, the defense time is arranged in June every year, and students should complete the examination of graduation thesis in late May. I began to prepare my graduation thesis in April, and don't change my thesis title when I found it inappropriate in mid-May. Because there is less than one month from mid-May to early June, it is impossible to complete the paper requirements and duplicate checking ratio stipulated by the teacher.
If you don't think this paper is suitable for you, you can ask your classmates and teachers to write any questions in the process of graduation design first, and professional teachers will give you accurate answers. If you give up writing a half-finished paper and rewrite it on a different topic, it will be time-consuming and laborious, and you may not finish writing the paper before your defense. To sum up, if you really feel that the paper can't be finished, then change it. If there is still a chance to save it, don't change the subject again.