I firmly believe in art you should focus on quantity over quality. Specifically becaue in the process of creating quantity your quality improves and by striving for quality you can very easily hit blocks because you get so caught up on perfectionism. You should be willing to make art that is bad and be comfortable with that potential. If you put your everything and all your time into one single thing that needs to be perfect and it comes out bad that could very easily disuade a lot of people from continuing. Spreading that out among a handful of pieces of art will make you less precious with them and if something fails then you learned from it and move on to the next thing.

The big distinction here isnt you're working like a factory you are shifting your focus on how you create from single large projects to a collection of smaller projects. Or maybe a few small projects and one large project you spread work evenly between. Think of it as how potters work. A potter will make 50 plates and without hesitation smash the 15 that weren't working. That isnt wasted work, you sweep up the pieces and recycle that clay back into your bucket of slip. At the end of the day you have 15 more plates under your belt and maybe the next time you make plates you only throw away 14.