On a closely related point - when I was still having difficulty learning how to do the last 6 feet of landing by doing touch and goes, my instructor twigged that during the holdoff I was already worrying about the subsequent takeoff. He then said "You land it and I will take off". We did a few circuits like that and it completely changed the way I was thinking about the landing and got me past one of those "blocks" that happen from time to time on a PPL course.
Incidentally, this was in AA5A and I was taught power then flaps and in PA28s I was taught flaps then power. For go-arounds in either one, of course, you don't touch anything but the throttle until you are well away from the hard stuff!