I am unable to make unique content

Hi guys, my name is Rita and I am a content writer. Mainly I am a copywriter and I use to provide copied content on different niche. So I am here to share a problem and with my problem, I want a solution from the reader of this post. Yesterday I got a message from a client and he said to make original content by my thoughts. That time I accepted that work and started to make it and then after completing the project when I checked it plagiarism the uniqueness in the project was only 25% and I was completely shocked. And my clients directly rejected my work and even get stopped to give me projects in the future. That was my problems friends, please help me tell me some tips by which I can make unique content easily.

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