So your biggest goal right now is to sell your first piece of art? Congrats! Being ready to move from artist to working artist is a big deal. It means you are serious about your goals and you're ready to start getting income from your art.
Here's my biggest tip:
Post a piece for sale!
I bet pretty much everyone reading this page has some Facebook friends or Instagram followers. Take a good picture of your piece (natural light!!!!!), write a description and post on your social media accounts along with the price. I would be surprised if you don't sell your first piece quickly. We're all insecure and vulnerable about offering our art up for sale. But you have to take that first step! Once you make one sale, you'll be over that threshold and eager to continue.
** Don't forget to edit your post with "SOLD" after you make that sale!**