If you want to save, there are several schemes:

To lose weight, using this manuscript directly to lose weight is still a lot of work, and it takes time and effort to change all the scarlet letters. If this manuscript is necessary, change the scarlet letter and gradually reduce the weight. Learn some skills and methods to reduce the weight, modify the duplicate checking rate of papers, and reach the school standard. It is better to write another paper than to make a whole revision to reduce the weight. After all, if you meet a strict defense teacher, even if the duplicate checking rate of the paper passes, the teacher may fail because the paper is not novel.

Rewriting, since it is a copy, is necessary. Rewriting may be faster than using this manuscript. You can re-apply to the tutor for a topic, which means you need to re-write a complete paper. After all, 80% of the papers prove that the opinions and words proved by the papers are copied from others, and the quality of this paper cannot be qualified; After all, because the repetition rate is too high and there are too many changes, it is very time-consuming.

As for whether to revise the content or rewrite the paper, it depends on your choice. We can also ask someone for help, whether it is to lose weight or rewrite, we can entrust others. Maybe it's cheaper to ask someone to rewrite it than to use your manuscript to lose weight, and their manuscript will be revised, but with your manuscript to lose weight, they are only responsible for reducing weight to the standard, regardless of subsequent revisions, so I think it's most economical to ask someone to rewrite 80% of the weight.