Hello 
In past I was struggling with perfectionism as well. Often times I would start something and would throw it away because it would not turn out perfect, exactly the way I pictured it in my mind or the idea would simply not work in reality. It paralyzed my work to a point I would begin to hate it even. Now I realize that it is not so important to always make it perfect, because there is actually something else more important. Getting better and path to progress. Perfectionism can be that beautiful struggle of progress as well, but like you pointed out, it has its downsides. So I tell myself, that it is OK if it is not perfect as long as can see even slightest progress with my work and focus on that.
Can't wait to see with what you come up next :)
RE: A bit like a polygonal jigsaw puzzle - - Thoughts about perfectionism