Today I scrapped 3 paintings that were not working and had reached a dead end. I worked on them for about 3 months and invested at least  £300  on materials in their production. It happens, part of the job, etc.
It occurs to me that I am lucky enough to call “the job”: my job simply because I can afford to make sometimes big mistakes. It’s how we learn. This way of working is a luxury and a major factor separating amateurs and professionals. If an artist can only afford one canvas and a few tubes of paint then they  will be understandably frightened to make a mess of it.
We talk a lot in this business about the illusiveness  of creativity, inspiration and all that  but somebody once said the answer to 99 out of 100 quedtions is money.