1. Stay calm: First of all, you need to stay calm and don't give up because of one failure. Scientific research is a long process, which requires patience and perseverance.
2. Read the reviewer's opinion carefully: the reviewer's opinion is an important basis for evaluating your research. You should read their opinions carefully and understand why they rejected your paper.
3. Revise and improve your paper: Revise and improve your paper according to the opinions of reviewers. This may take some time and energy, but it is an important step to improve the quality of the paper.
4. Seek professional help: If you are not sure how to revise your paper, you can seek professional help. For example, you can consult your tutor or peers, or hire a professional paper editing service.
5. Re-submission: After the paper is revised and improved, it can be re-submitted to SCI journals. Remember, rejection does not mean that your research is worthless, but that there is still room for improvement in your paper.
6. Choose other journals: If SCI journals reject your papers again, you can consider voting for other academic journals. Different journals have different standards and requirements for peer review, which may be more suitable for your research.
Generally speaking, the rejection of SCI papers is not the end, but a new beginning. You should learn from your failure, constantly improve your research ability and thesis writing ability, and finally realize your scientific research goals.