I did my first circuit detail at the weekend, and found it a tad intense, to say the least! By the end of the hour, I was literally trembling from the concentration and effort.
I wonder how you are being taught circuits?
I often introduce one circuit demo at the end of the early sorties as an ice-breaker.
When I teach the circuit the first instructional detail will concentrate on (mainly) the azimuth pattern and how to Go Around from a) downwind, (b) base leg, (c) final and (d) demo of recovery from misjudged flare. This means that the student has been enabled to recover from an incorrectly executed circuit and/or go around due to other traffic.
From there onwards it depends a bit on the aptitude of the student but in the early days I place little emphasis on the actual landing and more on a well flown circuit and final approach and encouraging the student to make an early decision to go around if things dont look good.
Prelanding checks and even RT can be blended in when the student begins to get the idea of the circuit.
Hope this helps!