Myth: You need to change your workout every time you train.
I see this a lot. People think that you need to keep shocking the body to stimulate it to change. The problem with this is, as mentioned above, that a lot of lifts are actually very technical and need practice. If you did a chest press on one visit and then didn’t do it again for 3 weeks, how would you learn that movement properly?
Another point is; how will you know if you are progressing with the movement? I monitor progress in different ways; through an increase in load (more weight), an increase in intensity (number of reps), and reduction of fatigue (it felt easier). Without regularly repeating the exercise, how will you know if you are progressing?