Having an understanding of the Ecology if the art world is important to understand. As an artist it is important to promote your art work and build relationships with galleries. It is also important to do fort her research into other opportunities artists can be involved in such as art fairs, public art commissioning and art festivals.
As an artist you may not have a regular income so it may be important to supplement this with a part time job, public and private funding or sales of work. It is important to be paid for the work you produce taking into account time spent in producing the work. Below i will add links you may find interesting: