As an artist, you've already discovered that one thing that you do better than anyone else.
No, you're not necessarily the better than other artists in general, but you are the best person in the world at your art, your style, and your creativity. You are the one and only person in the world who can do that. Play to that strength.
We can all "improve" our areas of weakness . . . . a little bit. But we can get exponentially better at our areas of strength. For example, I've become a marginally better graphic designer over the years (I've never been great at it), but I've become orders-of-magnitude better at software development . . . because I focus on my strengths.
Consider what Brian Johnson of AC/DC says, "We do one thing . . . . and that is rock."
And that's what we all need to do. For you rockin' is your artwork, for me rockin' is pumping out useful computer programs, for Alyson Stanfield rockin' is leading and coaching artists to get their marketing in order, for Brian Johnson rockin' is well . . . .rockin'!
And for you, rockin' is creating your artwork.
Make sure you're a true rock star though. Real rock stars do it for the love of the art, not for the money (and the money usually follows for those who don't do it for the money).
Consider what Seth Godin said about this subject:
The wonderful irony . . . is that this generosity and this approach to art just happens to pay off. In an increasingly commodified world, it turns out that genuine expressions of kindness and art are valued more than ever.
Do you know what the difficult part is? It's not the art. Not the talent or the skill. It's the deciding. Making the decision to be an artist instead.
Software Craftsman and Art Fanatic
PS - Rock on!