Not in my entire school career (1950s to 1960s), no.
I don't recall ever being bored in Infants' and Primary School, but I did not enjoy certain subjects on the five-year General Certificate of Education curriculum in my senior school, a Local Education Authority run grammar.
I did not like them because I could not learn them properly, particularly Mathematics and French. The former was not helped by two particular teachers. The first, in my Third Year*, was in his last year before retiring, and probably bored with teaching the same thing each year. He was little better than a talking text-book. The other was a bombastic character universally known (behind his back!) by his bizarre, old cricket-club nickname of 'Drasher' - he was only interested in the bright, keen pupils and certainly did help them; but did not suffer fools gladly, defining a "fool" as including anyone who found the subject difficult.
Besides, I honestly thought I would ever need most of the Maths and certainly not French - until my first ever trip to that country, only six years after dropping the language as a GCE Ordinary Level Examination subject.
That Maths syllabus over the full five years was very wide-ranging: Logarithms, Arithmetical tools like LCM and HCF, Algebra, Pure Geometry, Mensuration, Trigonometry, Equations linear, quadratic and simultaneous, Graphs, Calculus, I forget what else... A single, coherent, cohesive syllabus covering all topics in a developmental progression. I struggled with and so disliked most of it; and that lack of aptitude sank my early dreams of becoming a professional scientist or engineer. Years later I began to understand some topics by unexpected routes into them; at work and outside.
I did not enjoy most of the compulsory PE and Games, either. I was not good at them and was not really interested in sports, nor am I now.
On the plus side, my school had an active set of voluntary, after-school clubs and activities, and I enjoyed some of these.
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So no. The question is far too single-line for "Yes" or "No".
I did not find school "boring and unchallenging"; though parts of it were certainly challenging and not in a good way.
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What puzzles me is your recalling this:
...same stuff every year always leaving off at the same points of the book...
Going over the same material year after year? No progressively widening and advancing each subject?
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* Until first Comprehensive education then the National Curriculum, British schools counted each School Year from 1, or First, per school.
So primary schools had their First to Fourth Years, the upper school had its own First to Fifth (ages 11 to 15), the normal school leaving age being 15-16.
If you stayed to study to 'Advanced Level' as university entry qualifications, their two years were the Lower and Upper Sixth Forms or Years.
The changes brought a system that counts your entire school life in a single sequence from Year One in Infants' upwards to your leaving year.
