Being an artist seems so cool, but it often doesn't pay well if you aren't really good. Otherwise I might try to become one as a job!
Most become famous after death! They are defined as an individual who creates art, practicing an art or demonstrating an art. Too bad it's not lucrative! 
That's true! Many of them didn't even get to live through their success, what a shame.
Musicians and other performers are often referred to as artist as well.
I agree with that, since music and acting can easily be considered art.
Writers are also referred to artist but it is less common and most likely to be found associated with criticism.
Really? I never considered that. Writing can surely be art for how well it is written.
Wicktionary defines artist as the older meaning of artist. The Greeks used the word "techne" which means mastery of a craft and I would definitely agree with that.