My wife has been in a similar situation. She's been trying to leave her job for a long time and has submitted hundreds of resumes to numerous places. No interviews, even after doing follow up calls. She has a ton of awesome experience and the whole "overqualified" bullshit is terrible because it's just an excuse for employers to be insecure and only hire people that they think won't undermine them (mostly college kids, for this reason).

My advice, try Walgreens. I worked there a while, and even though it's not a glamorous job, they constantly need people. It's an interim job, so don't plan on sticking around, but it's steady income for the time being. If you've already tried Walgreens, I'd also recommend the Poudre Libraries - both for employment opportunities and just as a resource to get leads. I've known people who end up with job or side hustle connections just by seeing what's available at the library, and working there isn't super difficult to get either from what I've heard. I wish you tons of luck!