You are already dead because plagiarism is something that is not usually forgiven by professors. So, you should always try to stay away from plagiarism at the very first place. Now the question is how to stay away from it? Actually, there are various things you can do to save you before you face this kind of problem.
If you are not getting any expert help in writing, most probably, you will come across this problem. Therefore, it is better to use at least one plagiarism checking tool to detect and remove it. On the other hand, if you get someone’s help, don’t get low quality cheap assignment writing service.