"I haven't been painting very long; this is my eighth attempt at painting and I'm debating whether or not I should try to see if I could sell it." --A.N.It saddens me when I get submissions like this. Not only because it's unlikely the painting is at a level yet that it should be sent out into the world when you haven't very many miles under your brushes, but also because of the belief that being able to sell a work is somehow a measure of it being worthwhile or the reason for creating it. Your painting wants to be good even if no-one ever buys it. It doesn't become good because someone does.
5 Reasons You're Not (Yet) a Good Artist