Does anyone else ever submit a cover letter that they think is great at submission but then feel embarrassed by it within the next or so?

This has happened slot recently with some awesome jobs I found. I felt like I finally have gotten the hang of writing them. I find the language I need to complete one or two sentences to tie everything together. Check it for grammar and spelling (unlike here in this post). Then I will wake up with anxiety the next morning and realize I am idiot for some of the stuff I had written.

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