I think sometimes first hand experience can create stronger blocks; though it does also point out the big boulders that can get set up in the way.
I am only speaking from the point of view of fine arts made by hand like painting, drawing, printmaking and the like, so I wouldn’t want to generalize out into digital arts or more commercial art.
My take, and I have discussed this with others is that arts like painting are getting more marginalized, and while there has not been a major market for this type of work in recent times, the market seems to get worse and worse. A very few artists receive most of the sales. There is just very little room to break in.
One must start by showing art in art centers and galleries and museums. This is essential, but it is disheartening that so often this process does not give one much momentum or actual sales.
I have been in many exhibitions. Few have led to sales. I have even had a buyer approach me through the gallery he usually worked with and to make the sale I needed to give half of the money I would have made to the gallery, even though I was not represented by it. The buyer would not work directly with me. The gallery did almost nothing but took half of the money I would have made.
I would like to be disabused of my notions on this topic, but I do not think it is too far from the truth.
I think one idea from recent Law of Attraction thinking is that any problem or blockage can be overcome. This can lead a person to really feel like shit when they cannot solve the problem that they face.