I had a similar experience when I decided to move on from my first job. I naively accepted a recruiter's request to help and ended up going on a couple interviews where I was completely out of my depth.

5 minutes into the second such interview I asked the interviewer to see the job requirements and handed them a copy of my resume. I then explained that I didn't have any of the qualifications they were looking for, not even relevant experience, and noped my way out the door.

I received a nice email from the interviewer thanking me for not wasting their time and saying they'd keep my real resume on file if they had anything come up.

I fired the recruiter that day.