10 Rules I think an artist should follow

1. The first rule is like the most important if you want to be a true artist : Don't Copy! ( Because if you copy someone else's work you lose all the originality an artist has)
2. The second rule is to learn to give credit to other artists. You aren't the best artist as you think so you have to learn to appreciate another artist's work. Who know's,maybe you can learn something if you do this.
3. Try to remake some of your arts if you want. It's not truly a rule but you can see how much you evolve since you made the original.
4. Do not do artwork at a price of a big mac( For more info check this blog: http://chrisoatley.com/bad-clients/ )
5. Do not do the same thing if you want to be an artist. Sketch and draw as much as possible. Make animals,trees,rooms,paintings or whatever you have in mind.

The next five rules in the next post.  Also, here is a great animation video made by @2dcale from Twitter.