Artists, are you approaching the necessity of self-promotion with resentment, wishing for an agent or a gallery to take care of all of this annoying marketing/selling/writing stuff?
Some artists think self-promotion is intrinsically icky. They can grasp the benefits of self-promotion, but they just don’t want to get involved. You may have to set aside resistance, avoidance, and anxiety in order to make this task manageable.
I suggest you embrace the following concepts, which are shared by both art and self-promotion:
Write something for the buy and sell culture and go back to your real work.