If you make art, you are an artist. There is nothing in the definition of the word "artist" that implies quality or competence or talent. That is a constraint on the term that people such as yourself have created. It is a simple word. It carries no status by itself. "Good" or "bad" art is extremely subjective.
It's nothing to get yourself wound-up over. If you **** on a board and sign it, you are an artist. Just a really bad one, like most of the artists in the world.