I think I'm slow?

We had this job fair at work a few weeks ago and we had to go around and visit each rotation station


So they gave us a test 28 questions most of them were common sense. I failed both times and now I feel like a slow person. I don't know what's wrong with me and tests but I'm never good at them. I had to call my supervisor and I felt so embarrassed and dumb, cause I work with people who are disabled.

I'm slow, and I think I'm low IQ or intelligence. I am surprised I passed high school and got my CNA. my therapist says it's anxiety that I'd have to be average intelligence to pass my CNA, but I think I'm slow...
I think I'm slow?
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