Thanks for writing this, I must admit my motivation has suffered in the past due to myth 2 and the burden I placed on myself to be original all of time. I’ve realised that it’s much more important to just do the work, originality be damned.
My anxiety that feeds into this is that I use a lot of reference materials (mainly magazine photos) to create my art. I wonder at what point the image I use stops being the work of someone else and starts being my work? I wonder to what extent other artists draw from memory or use reference images? I can’t draw satisfying detail from my memory at all, sometimes I feel like I’m a pretty useless artist because of it. I can draw very well if I have the thing in front of me though.