Yes, 3-4 first orders can really return the money spent on training. The cost of courses in most cases pays off quickly. But almost no visualization course will teach you how to make money. Of course, in theory, if you improve the quality of your work, then customers will start looking at you more often and there will be more orders. But this is only in theory. In practice, unfortunately, this is not the case. I will cover this in more detail in another blog. And now about the courses themselves.  
   
   Courses in 2 weeks, or express  courses are not working. 
Of course, in two weeks you will be able to discover a whole new world of 3D graphics, and you will feel like a creator who wants to do something new, original. But being even the most diligent student, faced with the first problems, you will understand that you know only the tip of the iceberg.  
 
  Good courses last at least 4 months. It is very important for you to know not only visualization, but also 3D modeling, composition, color composition, post-processing. And also sculpting, tissue stimulation, texturing, animation basics can be useful.  
   A 3d artist is the same artist who draws on paper, but uses software that takes a lot of time to learn.

   You will never be told about the cons in your career. Most of the courses talk about an empty market, about the absence of competitors and a shortage of workers. But remember that almost every half year, 1 school can graduate from 8-14 students. During the gold rush, only sellers of shovels make money.
   You can also read about the details and subtleties of the minuses and pluses in a career