Have to admit (I added to a snark comment about Substack and productivity blogs when this was posted), it addresses a problem that is plaguing myself.

Still not sure if it will help me overcome this, but the "quitting point" concept and the drawing example made it a good read for me.

Not 100% the same, but I've also heard there is a correlation between procrastrination and perfectionism, narcisissm (not only grandiosity, also vulnerabity and low self-esteem):

https://pmc.ncbi.nlm.nih.gov/articles/PMC11353843/#sec3-ijer...

Relevant proverbs are plenty... "There is no failure except in no longer trying" etc