What's all that got to do with being a bodybuilder? That's my point.
It's not bad reading comprehension, it's an educated guess (from others and my past self) that you very likely spend more time thinking about things and reading, being distracted/persuaded by one thing or the next, than actually putting your head down and reaching goals. If not, I apologise.
Bodybuilding isn't just about making some muscles grow...it's about full body development, which means not just being 'big', or really strong on just hand full of exercises, but fully developed (which takes a certain style of training/dedication to bodyparts etc).
To be useful in this thread; for some bodyparts, especially on the basic movements, many enjoy working up to a low rep 'max' (not failure, but enough to cause acceleration to slow/form to breakdown), then proceed onto the higher rep set(s) for growth/more pump work (these sets can done with another exercise). You'd also need to be more conscious of cycling the intensity (periodization/deloads/periodic rest periods etc).