I checked your text with three different AI checkers.
Since you are not a native speaker if it comes to English, I assume you used (partly) a translator.

The AI tools you are mentioned are meant to correct and write in a certain, mainly the same style. I wouldn't use them to check your content if it is written by AI. There's no need to polish your text either if you want to be sure it doesn't change your text instead of only translating it or checking the grammar.

Your sentences are irregular. I assume that is the reason. Personally, I do not see any reason to label you for AI generated text.

I would say: Honour yourself as a writer and continue. You can only get better if you write.