Crap, I'm sorry you missed a typo, your frustration is very understandable and very relatable (I have also submitted resumes with typos in the past and felt awful as a result). I hope you can find some grace for yourself, you are human after all, and with ADHD, too.

For what it's worth, when I was a recruiting manager, and we needed people, a single typo would not have put them out of the hiring pool. If they had the qualifications, they would have gotten an interview and judged on that. But of course that's industry and company-dependent.

Sending you hugs.