Am I retarded for not being able to do pattern rec questions on IQ tests

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I know IQ is not important, not completely understood and that online tests are inaccurate. Just asking because this has been bothering me. I am pretty decent with mathematics and academics in general. I took a look at my first ever IQ test a while back, and had to do a picture pattern rec question for the first time in my life. The pattern rec questions absolutely destroyed me, then I took another one and it didn't have pattern rec questions so I shrugged it off. Apparently pattern recs are rather common for IQ tests and they are present in Mensa tests as well.

So /sci/, am I legitimately retarded or am I just inexperienced.