Never give up even your idea has been copied. Google Search Engine wasn't a new idea, Altavista and Yahoo were the best search engines before 1998. Google modified the old idea and changed the search engine history. It is true also when it comes to the niches that you think are competitive. If you can do better than your competitors, you are the winner. For example, Backlinko's founder made his site because the SEO Experts used to write content with boring way with no images. Now, he writes with amazing visual design and actionable tips that you can implement. People. Impressed. Google. Impressed.